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diff --git a/docs/manual/mod/mod_cache.html b/docs/manual/mod/mod_cache.html new file mode 100644 index 0000000..9c2afd8 --- /dev/null +++ b/docs/manual/mod/mod_cache.html @@ -0,0 +1,17 @@ +# GENERATED FROM XML -- DO NOT EDIT + +URI: mod_cache.html.en +Content-Language: en +Content-type: text/html; charset=ISO-8859-1 + +URI: mod_cache.html.fr.utf8 +Content-Language: fr +Content-type: text/html; charset=UTF-8 + +URI: mod_cache.html.ja.utf8 +Content-Language: ja +Content-type: text/html; charset=UTF-8 + +URI: mod_cache.html.ko.euc-kr +Content-Language: ko +Content-type: text/html; charset=EUC-KR diff --git a/docs/manual/mod/mod_cache.html.en b/docs/manual/mod/mod_cache.html.en new file mode 100644 index 0000000..8fb772c --- /dev/null +++ b/docs/manual/mod/mod_cache.html.en @@ -0,0 +1,1078 @@ +<?xml version="1.0" encoding="ISO-8859-1"?> +<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> +<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en"><head> +<meta content="text/html; charset=ISO-8859-1" http-equiv="Content-Type" /> +<!-- + XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX + This file is generated from xml source: DO NOT EDIT + XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX + --> +<title>mod_cache - Apache HTTP Server Version 2.4</title> +<link href="../style/css/manual.css" rel="stylesheet" media="all" type="text/css" title="Main stylesheet" /> +<link href="../style/css/manual-loose-100pc.css" rel="alternate stylesheet" media="all" type="text/css" title="No Sidebar - Default font size" /> +<link href="../style/css/manual-print.css" rel="stylesheet" media="print" type="text/css" /><link rel="stylesheet" type="text/css" href="../style/css/prettify.css" /> +<script src="../style/scripts/prettify.min.js" type="text/javascript"> +</script> + +<link href="../images/favicon.ico" rel="shortcut icon" /></head> +<body> +<div id="page-header"> +<p class="menu"><a href="../mod/">Modules</a> | <a href="../mod/directives.html">Directives</a> | <a href="http://wiki.apache.org/httpd/FAQ">FAQ</a> | <a href="../glossary.html">Glossary</a> | <a href="../sitemap.html">Sitemap</a></p> +<p class="apache">Apache HTTP Server Version 2.4</p> +<img alt="" src="../images/feather.png" /></div> +<div class="up"><a href="./"><img title="<-" alt="<-" src="../images/left.gif" /></a></div> +<div id="path"> +<a href="http://www.apache.org/">Apache</a> > <a href="http://httpd.apache.org/">HTTP Server</a> > <a href="http://httpd.apache.org/docs/">Documentation</a> > <a href="../">Version 2.4</a> > <a href="./">Modules</a></div> +<div id="page-content"> +<div id="preamble"><h1>Apache Module mod_cache</h1> +<div class="toplang"> +<p><span>Available Languages: </span><a href="../en/mod/mod_cache.html" title="English"> en </a> | +<a href="../fr/mod/mod_cache.html" hreflang="fr" rel="alternate" title="Français"> fr </a> | +<a href="../ja/mod/mod_cache.html" hreflang="ja" rel="alternate" title="Japanese"> ja </a> | +<a href="../ko/mod/mod_cache.html" hreflang="ko" rel="alternate" title="Korean"> ko </a></p> +</div> +<table class="module"><tr><th><a href="module-dict.html#Description">Description:</a></th><td>RFC 2616 compliant HTTP caching filter.</td></tr> +<tr><th><a href="module-dict.html#Status">Status:</a></th><td>Extension</td></tr> +<tr><th><a href="module-dict.html#ModuleIdentifier">Module Identifier:</a></th><td>cache_module</td></tr> +<tr><th><a href="module-dict.html#SourceFile">Source File:</a></th><td>mod_cache.c</td></tr></table> +<h3>Summary</h3> + + <div class="warning">This module should be used with care, as when the + <code class="directive"><a href="#cachequickhandler">CacheQuickHandler</a></code> directive is + in its default value of <strong>on</strong>, the <code class="directive"><a href="../mod/mod_access_compat.html#allow">Allow</a></code> and <code class="directive"><a href="../mod/mod_access_compat.html#deny">Deny</a></code> directives will be circumvented. + You should not enable quick handler caching for any content to which you + wish to limit access by client host name, address or environment + variable.</div> + + <p><code class="module"><a href="../mod/mod_cache.html">mod_cache</a></code> implements an <a href="http://www.ietf.org/rfc/rfc2616.txt">RFC 2616</a> compliant + <strong>HTTP content caching filter</strong>, with support for the caching + of content negotiated responses containing the Vary header.</p> + + <p>RFC 2616 compliant caching provides a mechanism to verify whether + stale or expired content is still fresh, and can represent a significant + performance boost when the origin server supports <strong>conditional + requests</strong> by honouring the + <a href="http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.26">If-None-Match</a> + HTTP request header. Content is only regenerated from scratch when the content + has changed, and not when the cached entry expires.</p> + + <p>As a filter, <code class="module"><a href="../mod/mod_cache.html">mod_cache</a></code> can be placed in front of + content originating from any handler, including <strong>flat + files</strong> (served from a slow disk cached on a fast disk), the output + of a <strong>CGI script</strong> or <strong>dynamic content + generator</strong>, or content <strong>proxied from another + server</strong>.</p> + + <p>In the default configuration, <code class="module"><a href="../mod/mod_cache.html">mod_cache</a></code> inserts the + caching filter as far forward as possible within the filter stack, + utilising the <strong>quick handler</strong> to bypass all per request + processing when returning content to the client. In this mode of + operation, <code class="module"><a href="../mod/mod_cache.html">mod_cache</a></code> may be thought of as a caching + proxy server bolted to the front of the webserver, while running within + the webserver itself.</p> + + <p>When the quick handler is switched off using the + <code class="directive"><a href="#cachequickhandler">CacheQuickHandler</a></code> directive, + it becomes possible to insert the <strong>CACHE</strong> filter at a + point in the filter stack chosen by the administrator. This provides the + opportunity to cache content before that content is personalised by the + <code class="module"><a href="../mod/mod_include.html">mod_include</a></code> filter, or optionally compressed by the + <code class="module"><a href="../mod/mod_deflate.html">mod_deflate</a></code> filter.</p> + + <p>Under normal operation, <code class="module"><a href="../mod/mod_cache.html">mod_cache</a></code> will respond to + and can be controlled by the + <a href="http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.9">Cache-Control</a> + and + <a href="http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.32">Pragma</a> + headers sent from a client in a request, or from a + server within a response. Under exceptional circumstances, + <code class="module"><a href="../mod/mod_cache.html">mod_cache</a></code> can be configured to override these headers + and force site specific behaviour, however such behaviour will be limited + to this cache only, and will not affect the operation of other caches + that may exist between the client and server, and as a result is not + recommended unless strictly necessary.</p> + + <p>RFC 2616 allows for the cache to return stale data while the existing + stale entry is refreshed from the origin server, and this is supported + by <code class="module"><a href="../mod/mod_cache.html">mod_cache</a></code> when the + <code class="directive"><a href="#cachelock">CacheLock</a></code> directive is suitably + configured. Such responses will contain a + <a href="http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.46">Warning</a> + HTTP header with a 110 response code. RFC 2616 also allows a cache to return + stale data when the attempt made to refresh the stale data returns an + error 500 or above, and this behaviour is supported by default by + <code class="module"><a href="../mod/mod_cache.html">mod_cache</a></code>. Such responses will contain a + <a href="http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.46">Warning</a> + HTTP header with a 111 response code.</p> + + <p><code class="module"><a href="../mod/mod_cache.html">mod_cache</a></code> requires the services of one or more + storage management modules. The following storage management modules are included in + the base Apache distribution:</p> + <dl> + <dt><code class="module"><a href="../mod/mod_cache_disk.html">mod_cache_disk</a></code></dt> + <dd>Implements a disk based storage manager. Headers and bodies are + stored separately on disk, in a directory structure derived from the + md5 hash of the cached URL. Multiple content negotiated responses can + be stored concurrently, however the caching of partial content is not + supported by this module. The <code class="program"><a href="../programs/htcacheclean.html">htcacheclean</a></code> tool is + provided to list cached URLs, remove cached URLs, or to maintain the size + of the disk cache within size and inode limits.</dd> + <dt><code class="module"><a href="../mod/mod_cache_socache.html">mod_cache_socache</a></code></dt> + <dd>Implements a shared object cache based storage manager. Headers and + bodies are stored together beneath a single key based on the URL of the + response being cached. Multiple content negotiated responses can + be stored concurrently, however the caching of partial content is not + supported by this module.</dd> + </dl> + + <p>Further details, discussion, and examples, are provided in the + <a href="../caching.html">Caching Guide</a>.</p> +</div> +<div id="quickview"><a href="https://www.apache.org/foundation/contributing.html" class="badge"><img src="https://www.apache.org/images/SupportApache-small.png" alt="Support Apache!" /></a><h3>Topics</h3> +<ul id="topics"> +<li><img alt="" src="../images/down.gif" /> <a href="#related">Related Modules and Directives</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#sampleconf">Sample Configuration</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#thunderingherd">Avoiding the Thundering Herd</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#finecontrol">Fine Control with the CACHE Filter</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#status">Cache Status and Logging</a></li> +</ul><h3 class="directives">Directives</h3> +<ul id="toc"> +<li><img alt="" src="../images/down.gif" /> <a href="#cachedefaultexpire">CacheDefaultExpire</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cachedetailheader">CacheDetailHeader</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cachedisable">CacheDisable</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cacheenable">CacheEnable</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cacheheader">CacheHeader</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cacheignorecachecontrol">CacheIgnoreCacheControl</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cacheignoreheaders">CacheIgnoreHeaders</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cacheignorenolastmod">CacheIgnoreNoLastMod</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cacheignorequerystring">CacheIgnoreQueryString</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cacheignoreurlsessionidentifiers">CacheIgnoreURLSessionIdentifiers</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cachekeybaseurl">CacheKeyBaseURL</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cachelastmodifiedfactor">CacheLastModifiedFactor</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cachelock">CacheLock</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cachelockmaxage">CacheLockMaxAge</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cachelockpath">CacheLockPath</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cachemaxexpire">CacheMaxExpire</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cacheminexpire">CacheMinExpire</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cachequickhandler">CacheQuickHandler</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cachestaleonerror">CacheStaleOnError</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cachestoreexpired">CacheStoreExpired</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cachestorenostore">CacheStoreNoStore</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cachestoreprivate">CacheStorePrivate</a></li> +</ul> +<h3>Bugfix checklist</h3><ul class="seealso"><li><a href="https://www.apache.org/dist/httpd/CHANGES_2.4">httpd changelog</a></li><li><a href="https://bz.apache.org/bugzilla/buglist.cgi?bug_status=__open__&list_id=144532&product=Apache%20httpd-2&query_format=specific&order=changeddate%20DESC%2Cpriority%2Cbug_severity&component=mod_cache">Known issues</a></li><li><a href="https://bz.apache.org/bugzilla/enter_bug.cgi?product=Apache%20httpd-2&component=mod_cache">Report a bug</a></li></ul><h3>See also</h3> +<ul class="seealso"> +<li><a href="../caching.html">Caching Guide</a></li> +<li><a href="#comments_section">Comments</a></li></ul></div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="section"> +<h2><a name="related" id="related">Related Modules and Directives</a></h2> + <table class="related"><tr><th>Related Modules</th><th>Related Directives</th></tr><tr><td><ul><li><code class="module"><a href="../mod/mod_cache_disk.html">mod_cache_disk</a></code></li><li><code class="module"><a href="../mod/mod_cache_socache.html">mod_cache_socache</a></code></li></ul></td><td><ul><li><code class="directive"><a href="../mod/mod_cache_disk.html#cacheroot">CacheRoot</a></code></li><li><code class="directive"><a href="../mod/mod_cache_disk.html#cachedirlevels">CacheDirLevels</a></code></li><li><code class="directive"><a href="../mod/mod_cache_disk.html#cachedirlength">CacheDirLength</a></code></li><li><code class="directive"><a href="../mod/mod_cache_disk.html#cacheminfilesize">CacheMinFileSize</a></code></li><li><code class="directive"><a href="../mod/mod_cache_disk.html#cachemaxfilesize">CacheMaxFileSize</a></code></li><li><code class="directive"><a href="../mod/mod_cache_socache.html#cachesocache">CacheSocache</a></code></li><li><code class="directive"><a href="../mod/mod_cache_socache.html#cachesocachemaxtime">CacheSocacheMaxTime</a></code></li><li><code class="directive"><a href="../mod/mod_cache_socache.html#cachesocachemintime">CacheSocacheMinTime</a></code></li><li><code class="directive"><a href="../mod/mod_cache_socache.html#cachesocachemaxsize">CacheSocacheMaxSize</a></code></li><li><code class="directive"><a href="../mod/mod_cache_socache.html#cachesocachereadsize">CacheSocacheReadSize</a></code></li><li><code class="directive"><a href="../mod/mod_cache_socache.html#cachesocachereadtime">CacheSocacheReadTime</a></code></li></ul></td></tr></table> +</div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="section"> +<h2><a name="sampleconf" id="sampleconf">Sample Configuration</a></h2> + <div class="example"><h3>Sample httpd.conf</h3><pre class="prettyprint lang-config"># +# Sample Cache Configuration +# +LoadModule cache_module modules/mod_cache.so +<IfModule mod_cache.c> + LoadModule cache_disk_module modules/mod_cache_disk.so + <IfModule mod_cache_disk.c> + CacheRoot "c:/cacheroot" + CacheEnable disk "/" + CacheDirLevels 5 + CacheDirLength 3 + </IfModule> + + # When acting as a proxy, don't cache the list of security updates + CacheDisable "http://security.update.server/update-list/" +</IfModule></pre> +</div> +</div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="section"> +<h2><a name="thunderingherd" id="thunderingherd">Avoiding the Thundering Herd</a></h2> + <p>When a cached entry becomes stale, <code class="module"><a href="../mod/mod_cache.html">mod_cache</a></code> will submit + a conditional request to the backend, which is expected to confirm whether the + cached entry is still fresh, and send an updated entity if not.</p> + <p>A small but finite amount of time exists between the time the cached entity + becomes stale, and the time the stale entity is fully refreshed. On a busy + server, a significant number of requests might arrive during this time, and + cause a <strong>thundering herd</strong> of requests to strike the backend + suddenly and unpredictably.</p> + <p>To keep the thundering herd at bay, the <code class="directive"><a href="#cachelock">CacheLock</a></code> + directive can be used to define a directory in which locks are created for + URLs <strong>in flight</strong>. The lock is used as a <strong>hint</strong> + by other requests to either suppress an attempt to cache (someone else has + gone to fetch the entity), or to indicate that a stale entry is being refreshed + (stale content will be returned in the mean time). + </p> + <h3>Initial caching of an entry</h3> + + <p>When an entity is cached for the first time, a lock will be created for the + entity until the response has been fully cached. During the lifetime of the + lock, the cache will suppress the second and subsequent attempt to cache the + same entity. While this doesn't hold back the thundering herd, it does stop + the cache attempting to cache the same entity multiple times simultaneously. + </p> + + <h3>Refreshment of a stale entry</h3> + + <p>When an entity reaches its freshness lifetime and becomes stale, a lock + will be created for the entity until the response has either been confirmed as + still fresh, or replaced by the backend. During the lifetime of the lock, the + second and subsequent incoming request will cause stale data to be returned, + and the thundering herd is kept at bay.</p> + + <h3>Locks and Cache-Control: no-cache</h3> + + <p>Locks are used as a <strong>hint only</strong> to enable the cache to be + more gentle on backend servers, however the lock can be overridden if necessary. + If the client sends a request with a Cache-Control header forcing a reload, any + lock that may be present will be ignored, and the client's request will be + honored immediately and the cached entry refreshed.</p> + <p>As a further safety mechanism, locks have a configurable maximum age. + Once this age has been reached, the lock is removed, and a new request is + given the opportunity to create a new lock. This maximum age can be set using + the <code class="directive"><a href="#cachelockmaxage">CacheLockMaxAge</a></code> directive, and defaults + to 5 seconds. + </p> + + <h3>Example configuration</h3> + + <div class="example"><h3>Enabling the cache lock</h3><pre class="prettyprint lang-config"># +# Enable the cache lock +# +<IfModule mod_cache.c> + CacheLock on + CacheLockPath "/tmp/mod_cache-lock" + CacheLockMaxAge 5 +</IfModule></pre> +</div> + +</div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="section"> +<h2><a name="finecontrol" id="finecontrol">Fine Control with the CACHE Filter</a></h2> + <p>Under the default mode of cache operation, the cache runs as a quick handler, + short circuiting the majority of server processing and offering the highest + cache performance available.</p> + + <p>In this mode, the cache <strong>bolts onto</strong> the front of the server, + acting as if a free standing RFC 2616 caching proxy had been placed in front of + the server.</p> + + <p>While this mode offers the best performance, the administrator may find that + under certain circumstances they may want to perform further processing on the + request after the request is cached, such as to inject personalisation into the + cached page, or to apply authorization restrictions to the content. Under these + circumstances, an administrator is often forced to place independent reverse + proxy servers either behind or in front of the caching server to achieve this.</p> + + <p>To solve this problem the <code class="directive"><a href="#cachequickhandler">CacheQuickHandler</a></code> + directive can be set to <strong>off</strong>, and the server will + process all phases normally handled by a non-cached request, including the + <strong>authentication and authorization</strong> phases.</p> + + <p>In addition, the administrator may optionally specify the <strong>precise point + within the filter chain</strong> where caching is to take place by adding the + <strong>CACHE</strong> filter to the output filter chain.</p> + + <p>For example, to cache content before applying compression to the response, + place the <strong>CACHE</strong> filter before the <strong>DEFLATE</strong> + filter as in the example below:</p> + + <pre class="prettyprint lang-config"># Cache content before optional compression +CacheQuickHandler off +AddOutputFilterByType CACHE;DEFLATE text/plain</pre> + + + <p>Another option is to have content cached before personalisation is applied + by <code class="module"><a href="../mod/mod_include.html">mod_include</a></code> (or another content processing filter). In this + example templates containing tags understood by + <code class="module"><a href="../mod/mod_include.html">mod_include</a></code> are cached before being parsed:</p> + + <pre class="prettyprint lang-config"># Cache content before mod_include and mod_deflate +CacheQuickHandler off +AddOutputFilterByType CACHE;INCLUDES;DEFLATE text/html</pre> + + + <p>You may place the <strong>CACHE</strong> filter anywhere you wish within the + filter chain. In this example, content is cached after being parsed by + <code class="module"><a href="../mod/mod_include.html">mod_include</a></code>, but before being processed by + <code class="module"><a href="../mod/mod_deflate.html">mod_deflate</a></code>:</p> + + <pre class="prettyprint lang-config"># Cache content between mod_include and mod_deflate +CacheQuickHandler off +AddOutputFilterByType INCLUDES;CACHE;DEFLATE text/html</pre> + + + <div class="warning"><h3>Warning:</h3>If the location of the + <strong>CACHE</strong> filter in the filter chain is changed for any reason, + you may need to <strong>flush your cache</strong> to ensure that your data + served remains consistent. <code class="module"><a href="../mod/mod_cache.html">mod_cache</a></code> is not in a position + to enforce this for you.</div> + +</div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="section"> +<h2><a name="status" id="status">Cache Status and Logging</a></h2> + <p>Once <code class="module"><a href="../mod/mod_cache.html">mod_cache</a></code> has made a decision as to whether or not + an entity is to be served from cache, the detailed reason for the decision + is written to the subprocess environment within the request under the + <strong>cache-status</strong> key. This reason can be logged by the + <code class="directive"><a href="../mod/mod_log_config.html#logformat">LogFormat</a></code> directive as + follows:</p> + + <pre class="prettyprint lang-config">LogFormat "%{cache-status}e ..."</pre> + + + <p>Based on the caching decision made, the reason is also written to the + subprocess environment under one the following four keys, as appropriate:</p> + + <dl> + <dt>cache-hit</dt><dd>The response was served from cache.</dd> + <dt>cache-revalidate</dt><dd>The response was stale and was successfully + revalidated, then served from cache.</dd> + <dt>cache-miss</dt><dd>The response was served from the upstream server.</dd> + <dt>cache-invalidate</dt><dd>The cached entity was invalidated by a request + method other than GET or HEAD.</dd> + </dl> + + <p>This makes it possible to support conditional logging of cached requests + as per the following example:</p> + + <pre class="prettyprint lang-config">CustomLog "cached-requests.log" common env=cache-hit +CustomLog "uncached-requests.log" common env=cache-miss +CustomLog "revalidated-requests.log" common env=cache-revalidate +CustomLog "invalidated-requests.log" common env=cache-invalidate</pre> + + + <p>For module authors, a hook called <var>cache_status</var> is available, + allowing modules to respond to the caching outcomes above in customised + ways.</p> +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="CacheDefaultExpire" id="CacheDefaultExpire">CacheDefaultExpire</a> <a name="cachedefaultexpire" id="cachedefaultexpire">Directive</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>The default duration to cache a document when no expiry date is specified.</td></tr> +<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>CacheDefaultExpire <var>seconds</var></code></td></tr> +<tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>CacheDefaultExpire 3600 (one hour)</code></td></tr> +<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host, directory, .htaccess</td></tr> +<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Extension</td></tr> +<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_cache</td></tr> +</table> + <p>The <code class="directive">CacheDefaultExpire</code> directive specifies a default time, + in seconds, to cache a document if neither an expiry date nor last-modified date are provided + with the document. The value specified with the <code class="directive"><a href="#cachemaxexpire">CacheMaxExpire</a></code> + directive does <em>not</em> override this setting.</p> + + <pre class="prettyprint lang-config">CacheDefaultExpire 86400</pre> + + +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="CacheDetailHeader" id="CacheDetailHeader">CacheDetailHeader</a> <a name="cachedetailheader" id="cachedetailheader">Directive</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Add an X-Cache-Detail header to the response.</td></tr> +<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>CacheDetailHeader <var>on|off</var></code></td></tr> +<tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>CacheDetailHeader off</code></td></tr> +<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host, directory, .htaccess</td></tr> +<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Extension</td></tr> +<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_cache</td></tr> +<tr><th><a href="directive-dict.html#Compatibility">Compatibility:</a></th><td>Available in Apache 2.3.9 and later</td></tr> +</table> + <p>When the <code class="directive">CacheDetailHeader</code> directive + is switched on, an <strong>X-Cache-Detail</strong> header will be added to the response + containing the detailed reason for a particular caching decision.</p> + + <p>It can be useful during development of cached RESTful services to have additional + information about the caching decision written to the response headers, so as to + confirm whether <code>Cache-Control</code> and other headers have been correctly + used by the service and client.</p> + + <p>If the normal handler is used, this directive may appear within a + <code class="directive"><a href="../mod/core.html#directory"><Directory></a></code> or + <code class="directive"><a href="../mod/core.html#location"><Location></a></code> directive. If the quick handler + is used, this directive must appear within a server or virtual host context, otherwise + the setting will be ignored.</p> + + <pre class="prettyprint lang-config"># Enable the X-Cache-Detail header +CacheDetailHeader on</pre> + + + <div class="example"><p><code> + X-Cache-Detail: "conditional cache hit: entity refreshed" from localhost<br /> + </code></p></div> + + +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="CacheDisable" id="CacheDisable">CacheDisable</a> <a name="cachedisable" id="cachedisable">Directive</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Disable caching of specified URLs</td></tr> +<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>CacheDisable <var>url-string</var> | <var>on</var></code></td></tr> +<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host, directory, .htaccess</td></tr> +<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Extension</td></tr> +<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_cache</td></tr> +</table> + <p>The <code class="directive">CacheDisable</code> directive instructs + <code class="module"><a href="../mod/mod_cache.html">mod_cache</a></code> to <em>not</em> cache urls at or below + <var>url-string</var>.</p> + + <div class="example"><h3>Example</h3><pre class="prettyprint lang-config">CacheDisable "/local_files"</pre> +</div> + + <p>If used in a <code class="directive"><a href="../mod/core.html#location"><Location></a></code> directive, + the path needs to be specified below the Location, or if the word "on" + is used, caching for the whole location will be disabled.</p> + + <div class="example"><h3>Example</h3><pre class="prettyprint lang-config"><Location "/foo"> + CacheDisable on +</Location></pre> +</div> + + <p>The <code>no-cache</code> environment variable can be set to + disable caching on a finer grained set of resources in versions + 2.2.12 and later.</p> + + +<h3>See also</h3> +<ul> +<li><a href="../env.html">Environment Variables in Apache</a></li> +</ul> +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="CacheEnable" id="CacheEnable">CacheEnable</a> <a name="cacheenable" id="cacheenable">Directive</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Enable caching of specified URLs using a specified storage +manager</td></tr> +<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>CacheEnable <var>cache_type</var> [<var>url-string</var>]</code></td></tr> +<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host, directory</td></tr> +<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Extension</td></tr> +<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_cache</td></tr> +<tr><th><a href="directive-dict.html#Compatibility">Compatibility:</a></th><td>A url-string of '/' applied to forward proxy content in 2.2 and + earlier.</td></tr> +</table> + <p>The <code class="directive">CacheEnable</code> directive instructs + <code class="module"><a href="../mod/mod_cache.html">mod_cache</a></code> to cache urls at or below + <var>url-string</var>. The cache storage manager is specified with the + <var>cache_type</var> argument. The <code class="directive">CacheEnable</code> + directive can alternatively be placed inside either + <code class="directive"><a href="../mod/core.html#location"><Location></a></code> or + <code class="directive"><a href="../mod/core.html#locationmatch"><LocationMatch></a></code> sections to indicate + the content is cacheable. + <var>cache_type</var> <code>disk</code> instructs + <code class="module"><a href="../mod/mod_cache.html">mod_cache</a></code> to use the disk based storage manager + implemented by <code class="module"><a href="../mod/mod_cache_disk.html">mod_cache_disk</a></code>. <var>cache_type</var> + <code>socache</code> instructs <code class="module"><a href="../mod/mod_cache.html">mod_cache</a></code> to use the + shared object cache based storage manager implemented by + <code class="module"><a href="../mod/mod_cache_socache.html">mod_cache_socache</a></code>.</p> + <p>In the event that the URL space overlaps between different + <code class="directive">CacheEnable</code> directives (as in the example below), + each possible storage manager will be run until the first one that + actually processes the request. The order in which the storage managers are + run is determined by the order of the <code class="directive">CacheEnable</code> + directives in the configuration file. <code class="directive">CacheEnable</code> + directives within <code class="directive"><a href="../mod/core.html#location"><Location></a></code> or + <code class="directive"><a href="../mod/core.html#locationmatch"><LocationMatch></a></code> sections are processed + before globally defined <code class="directive">CacheEnable</code> directives.</p> + + <p>When acting as a forward proxy server, <var>url-string</var> must + minimally begin with a protocol for which caching should be enabled.</p> + + <pre class="prettyprint lang-config"># Cache content (normal handler only) +CacheQuickHandler off +<Location "/foo"> + CacheEnable disk +</Location> + +# Cache regex (normal handler only) +CacheQuickHandler off +<LocationMatch "foo$"> + CacheEnable disk +</LocationMatch> + +# Cache all but forward proxy url's (normal or quick handler) +CacheEnable disk / + +# Cache FTP-proxied url's (normal or quick handler) +CacheEnable disk ftp:// + +# Cache forward proxy content from www.example.org (normal or quick handler) +CacheEnable disk http://www.example.org/</pre> + + + <p>A hostname starting with a <strong>"*"</strong> matches all hostnames with + that suffix. A hostname starting with <strong>"."</strong> matches all + hostnames containing the domain components that follow.</p> + + <pre class="prettyprint lang-config"># Match www.example.org, and fooexample.org +CacheEnable disk "http://*example.org/" +# Match www.example.org, but not fooexample.org +CacheEnable disk "http://.example.org/"</pre> + + + <p> The <code>no-cache</code> environment variable can be set to + disable caching on a finer grained set of resources in versions + 2.2.12 and later.</p> + + +<h3>See also</h3> +<ul> +<li><a href="../env.html">Environment Variables in Apache</a></li> +</ul> +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="CacheHeader" id="CacheHeader">CacheHeader</a> <a name="cacheheader" id="cacheheader">Directive</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Add an X-Cache header to the response.</td></tr> +<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>CacheHeader <var>on|off</var></code></td></tr> +<tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>CacheHeader off</code></td></tr> +<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host, directory, .htaccess</td></tr> +<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Extension</td></tr> +<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_cache</td></tr> +<tr><th><a href="directive-dict.html#Compatibility">Compatibility:</a></th><td>Available in Apache 2.3.9 and later</td></tr> +</table> + <p>When the <code class="directive">CacheHeader</code> directive + is switched on, an <strong>X-Cache</strong> header will be added to the response + with the cache status of this response. If the normal handler is used, this + directive may appear within a <code class="directive"><a href="../mod/core.html#directory"><Directory></a></code> + or <code class="directive"><a href="../mod/core.html#location"><Location></a></code> directive. If the quick + handler is used, this directive must appear within a server or virtual host + context, otherwise the setting will be ignored.</p> + + <dl> + <dt><strong>HIT</strong></dt><dd>The entity was fresh, and was served from + cache.</dd> + <dt><strong>REVALIDATE</strong></dt><dd>The entity was stale, was successfully + revalidated and was served from cache.</dd> + <dt><strong>MISS</strong></dt><dd>The entity was fetched from the upstream + server and was not served from cache.</dd> + </dl> + + <pre class="prettyprint lang-config"># Enable the X-Cache header +CacheHeader on</pre> + + + <pre class="prettyprint lang-config">X-Cache: HIT from localhost</pre> + + + +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="CacheIgnoreCacheControl" id="CacheIgnoreCacheControl">CacheIgnoreCacheControl</a> <a name="cacheignorecachecontrol" id="cacheignorecachecontrol">Directive</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Ignore request to not serve cached content to client</td></tr> +<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>CacheIgnoreCacheControl On|Off</code></td></tr> +<tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>CacheIgnoreCacheControl Off</code></td></tr> +<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host</td></tr> +<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Extension</td></tr> +<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_cache</td></tr> +</table> + <p>Ordinarily, requests containing a <code>Cache-Control: no-cache</code> or + Pragma: no-cache header value will not be served from the cache. The + <code class="directive">CacheIgnoreCacheControl</code> directive allows this + behavior to be overridden. <code class="directive">CacheIgnoreCacheControl On</code> + tells the server to attempt to serve the resource from the cache even + if the request contains no-cache header values. Resources requiring + authorization will <em>never</em> be cached.</p> + + <pre class="prettyprint lang-config">CacheIgnoreCacheControl On</pre> + + + <div class="warning"><h3>Warning:</h3> + This directive will allow serving from the cache even if the client has + requested that the document not be served from the cache. This might + result in stale content being served. + </div> + +<h3>See also</h3> +<ul> +<li><code class="directive"><a href="#cachestoreprivate">CacheStorePrivate</a></code></li> +<li><code class="directive"><a href="#cachestorenostore">CacheStoreNoStore</a></code></li> +</ul> +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="CacheIgnoreHeaders" id="CacheIgnoreHeaders">CacheIgnoreHeaders</a> <a name="cacheignoreheaders" id="cacheignoreheaders">Directive</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Do not store the given HTTP header(s) in the cache. +</td></tr> +<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>CacheIgnoreHeaders <var>header-string</var> [<var>header-string</var>] ...</code></td></tr> +<tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>CacheIgnoreHeaders None</code></td></tr> +<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host</td></tr> +<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Extension</td></tr> +<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_cache</td></tr> +</table> + <p>According to RFC 2616, hop-by-hop HTTP headers are not stored in + the cache. The following HTTP headers are hop-by-hop headers and thus + do not get stored in the cache in <em>any</em> case regardless of the + setting of <code class="directive">CacheIgnoreHeaders</code>:</p> + + <ul> + <li><code>Connection</code></li> + <li><code>Keep-Alive</code></li> + <li><code>Proxy-Authenticate</code></li> + <li><code>Proxy-Authorization</code></li> + <li><code>TE</code></li> + <li><code>Trailers</code></li> + <li><code>Transfer-Encoding</code></li> + <li><code>Upgrade</code></li> + </ul> + + <p><code class="directive">CacheIgnoreHeaders</code> specifies additional HTTP + headers that should not to be stored in the cache. For example, it makes + sense in some cases to prevent cookies from being stored in the cache.</p> + + <p><code class="directive">CacheIgnoreHeaders</code> takes a space separated list + of HTTP headers that should not be stored in the cache. If only hop-by-hop + headers not should be stored in the cache (the RFC 2616 compliant + behaviour), <code class="directive">CacheIgnoreHeaders</code> can be set to + <code>None</code>.</p> + + <div class="example"><h3>Example 1</h3><pre class="prettyprint lang-config">CacheIgnoreHeaders Set-Cookie</pre> +</div> + + <div class="example"><h3>Example 2</h3><pre class="prettyprint lang-config">CacheIgnoreHeaders None</pre> +</div> + + <div class="warning"><h3>Warning:</h3> + If headers like <code>Expires</code> which are needed for proper cache + management are not stored due to a + <code class="directive">CacheIgnoreHeaders</code> setting, the behaviour of + mod_cache is undefined. + </div> + +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="CacheIgnoreNoLastMod" id="CacheIgnoreNoLastMod">CacheIgnoreNoLastMod</a> <a name="cacheignorenolastmod" id="cacheignorenolastmod">Directive</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Ignore the fact that a response has no Last Modified +header.</td></tr> +<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>CacheIgnoreNoLastMod On|Off</code></td></tr> +<tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>CacheIgnoreNoLastMod Off</code></td></tr> +<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host, directory, .htaccess</td></tr> +<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Extension</td></tr> +<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_cache</td></tr> +</table> + <p>Ordinarily, documents without a last-modified date are not cached. + Under some circumstances the last-modified date is removed (during + <code class="module"><a href="../mod/mod_include.html">mod_include</a></code> processing for example) or not provided + at all. The <code class="directive">CacheIgnoreNoLastMod</code> directive + provides a way to specify that documents without last-modified dates + should be considered for caching, even without a last-modified date. + If neither a last-modified date nor an expiry date are provided with + the document then the value specified by the + <code class="directive"><a href="#cachedefaultexpire">CacheDefaultExpire</a></code> directive will be used to + generate an expiration date.</p> + + <pre class="prettyprint lang-config">CacheIgnoreNoLastMod On</pre> + + +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="CacheIgnoreQueryString" id="CacheIgnoreQueryString">CacheIgnoreQueryString</a> <a name="cacheignorequerystring" id="cacheignorequerystring">Directive</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Ignore query string when caching</td></tr> +<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>CacheIgnoreQueryString On|Off</code></td></tr> +<tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>CacheIgnoreQueryString Off</code></td></tr> +<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host</td></tr> +<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Extension</td></tr> +<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_cache</td></tr> +</table> + <p>Ordinarily, requests with query string parameters are cached separately + for each unique query string. This is according to RFC 2616/13.9 done only + if an expiration time is specified. The + <code class="directive">CacheIgnoreQueryString</code> directive tells the cache to + cache requests even if no expiration time is specified, and to reply with + a cached reply even if the query string differs. From a caching point of + view the request is treated as if having no query string when this + directive is enabled.</p> + + <pre class="prettyprint lang-config">CacheIgnoreQueryString On</pre> + + + +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="CacheIgnoreURLSessionIdentifiers" id="CacheIgnoreURLSessionIdentifiers">CacheIgnoreURLSessionIdentifiers</a> <a name="cacheignoreurlsessionidentifiers" id="cacheignoreurlsessionidentifiers">Directive</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Ignore defined session identifiers encoded in the URL when caching +</td></tr> +<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>CacheIgnoreURLSessionIdentifiers <var>identifier</var> [<var>identifier</var>] ...</code></td></tr> +<tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>CacheIgnoreURLSessionIdentifiers None</code></td></tr> +<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host</td></tr> +<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Extension</td></tr> +<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_cache</td></tr> +</table> + <p>Sometimes applications encode the session identifier into the URL like in the following + Examples: + </p> + <ul> + <li><code>/someapplication/image.gif;jsessionid=123456789</code></li> + <li><code>/someapplication/image.gif?PHPSESSIONID=12345678</code></li> + </ul> + <p>This causes cacheable resources to be stored separately for each session, which + is often not desired. <code class="directive">CacheIgnoreURLSessionIdentifiers</code> lets + define a list of identifiers that are removed from the key that is used to identify + an entity in the cache, such that cacheable resources are not stored separately for + each session. + </p> + <p><code>CacheIgnoreURLSessionIdentifiers None</code> clears the list of ignored + identifiers. Otherwise, each identifier is added to the list.</p> + + <div class="example"><h3>Example 1</h3><pre class="prettyprint lang-config">CacheIgnoreURLSessionIdentifiers jsessionid</pre> +</div> + + <div class="example"><h3>Example 2</h3><pre class="prettyprint lang-config">CacheIgnoreURLSessionIdentifiers None</pre> +</div> + + +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="CacheKeyBaseURL" id="CacheKeyBaseURL">CacheKeyBaseURL</a> <a name="cachekeybaseurl" id="cachekeybaseurl">Directive</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Override the base URL of reverse proxied cache keys.</td></tr> +<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>CacheKeyBaseURL <var>URL</var></code></td></tr> +<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host</td></tr> +<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Extension</td></tr> +<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_cache</td></tr> +<tr><th><a href="directive-dict.html#Compatibility">Compatibility:</a></th><td>Available in Apache 2.3.9 and later</td></tr> +</table> + <p>When the <code class="directive">CacheKeyBaseURL</code> directive + is specified, the URL provided will be used as the base URL to calculate + the URL of the cache keys in the reverse proxy configuration. When not specified, + the scheme, hostname and port of the current virtual host is used to construct + the cache key. When a cluster of machines is present, and all cached entries + should be cached beneath the same cache key, a new base URL can be specified + with this directive.</p> + + <pre class="prettyprint lang-config"># Override the base URL of the cache key. +CacheKeyBaseURL "http://www.example.com/"</pre> + + + <div class="warning">Take care when setting this directive. If two separate virtual + hosts are accidentally given the same base URL, entries from one virtual host + will be served to the other.</div> + + +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="CacheLastModifiedFactor" id="CacheLastModifiedFactor">CacheLastModifiedFactor</a> <a name="cachelastmodifiedfactor" id="cachelastmodifiedfactor">Directive</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>The factor used to compute an expiry date based on the +LastModified date.</td></tr> +<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>CacheLastModifiedFactor <var>float</var></code></td></tr> +<tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>CacheLastModifiedFactor 0.1</code></td></tr> +<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host, directory, .htaccess</td></tr> +<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Extension</td></tr> +<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_cache</td></tr> +</table> + <p>In the event that a document does not provide an expiry date but does + provide a last-modified date, an expiry date can be calculated based on + the time since the document was last modified. The + <code class="directive">CacheLastModifiedFactor</code> directive specifies a + <var>factor</var> to be used in the generation of this expiry date + according to the following formula: + + <code>expiry-period = time-since-last-modified-date * <var>factor</var> + expiry-date = current-date + expiry-period</code> + + For example, if the document was last modified 10 hours ago, and + <var>factor</var> is 0.1 then the expiry-period will be set to + 10*0.1 = 1 hour. If the current time was 3:00pm then the computed + expiry-date would be 3:00pm + 1hour = 4:00pm. + + If the expiry-period would be longer than that set by + <code class="directive"><a href="#cachemaxexpire">CacheMaxExpire</a></code>, then the latter takes + precedence.</p> + + <pre class="prettyprint lang-config">CacheLastModifiedFactor 0.5</pre> + + +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="CacheLock" id="CacheLock">CacheLock</a> <a name="cachelock" id="cachelock">Directive</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Enable the thundering herd lock.</td></tr> +<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>CacheLock <var>on|off</var></code></td></tr> +<tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>CacheLock off</code></td></tr> +<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host</td></tr> +<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Extension</td></tr> +<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_cache</td></tr> +<tr><th><a href="directive-dict.html#Compatibility">Compatibility:</a></th><td>Available in Apache 2.2.15 and later</td></tr> +</table> + <p>The <code class="directive">CacheLock</code> directive enables the thundering herd lock + for the given URL space.</p> + + <p>In a minimal configuration the following directive is all that is needed to + enable the thundering herd lock in the default system temp directory.</p> + + <pre class="prettyprint lang-config"># Enable cache lock +CacheLock on</pre> + + + +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="CacheLockMaxAge" id="CacheLockMaxAge">CacheLockMaxAge</a> <a name="cachelockmaxage" id="cachelockmaxage">Directive</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Set the maximum possible age of a cache lock.</td></tr> +<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>CacheLockMaxAge <var>integer</var></code></td></tr> +<tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>CacheLockMaxAge 5</code></td></tr> +<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host</td></tr> +<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Extension</td></tr> +<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_cache</td></tr> +</table> + <p>The <code class="directive">CacheLockMaxAge</code> directive specifies the maximum + age of any cache lock.</p> + + <p>A lock older than this value in seconds will be ignored, and the next + incoming request will be given the opportunity to re-establish the lock. + This mechanism prevents a slow client taking an excessively long time to refresh + an entity.</p> + + +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="CacheLockPath" id="CacheLockPath">CacheLockPath</a> <a name="cachelockpath" id="cachelockpath">Directive</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Set the lock path directory.</td></tr> +<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>CacheLockPath <var>directory</var></code></td></tr> +<tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>CacheLockPath /tmp/mod_cache-lock</code></td></tr> +<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host</td></tr> +<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Extension</td></tr> +<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_cache</td></tr> +</table> + <p>The <code class="directive">CacheLockPath</code> directive allows you to specify the + directory in which the locks are created. By default, the system's temporary + folder is used. Locks consist of empty files that only exist for stale URLs + in flight, so is significantly less resource intensive than the traditional + disk cache.</p> + + +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="CacheMaxExpire" id="CacheMaxExpire">CacheMaxExpire</a> <a name="cachemaxexpire" id="cachemaxexpire">Directive</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>The maximum time in seconds to cache a document</td></tr> +<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>CacheMaxExpire <var>seconds</var></code></td></tr> +<tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>CacheMaxExpire 86400 (one day)</code></td></tr> +<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host, directory, .htaccess</td></tr> +<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Extension</td></tr> +<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_cache</td></tr> +</table> + <p>The <code class="directive">CacheMaxExpire</code> directive specifies the maximum number of + seconds for which cacheable HTTP documents will be retained without checking the origin + server. Thus, documents will be out of date at most this number of seconds. This maximum + value is enforced even if an expiry date was supplied with the document.</p> + + <pre class="prettyprint lang-config">CacheMaxExpire 604800</pre> + + +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="CacheMinExpire" id="CacheMinExpire">CacheMinExpire</a> <a name="cacheminexpire" id="cacheminexpire">Directive</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>The minimum time in seconds to cache a document</td></tr> +<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>CacheMinExpire <var>seconds</var></code></td></tr> +<tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>CacheMinExpire 0</code></td></tr> +<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host, directory, .htaccess</td></tr> +<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Extension</td></tr> +<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_cache</td></tr> +</table> + <p>The <code class="directive">CacheMinExpire</code> directive specifies the minimum number of + seconds for which cacheable HTTP documents will be retained without checking the origin + server. This is only used if no valid expire time was supplied with the document.</p> + + + <pre class="prettyprint lang-config">CacheMinExpire 3600</pre> + + +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="CacheQuickHandler" id="CacheQuickHandler">CacheQuickHandler</a> <a name="cachequickhandler" id="cachequickhandler">Directive</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Run the cache from the quick handler.</td></tr> +<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>CacheQuickHandler <var>on|off</var></code></td></tr> +<tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>CacheQuickHandler on</code></td></tr> +<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host</td></tr> +<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Extension</td></tr> +<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_cache</td></tr> +<tr><th><a href="directive-dict.html#Compatibility">Compatibility:</a></th><td>Apache HTTP Server 2.3.3 and later</td></tr> +</table> + <p>The <code class="directive">CacheQuickHandler</code> directive + controls the phase in which the cache is handled.</p> + + <p>In the default enabled configuration, the cache operates within the quick + handler phase. This phase short circuits the majority of server processing, + and represents the most performant mode of operation for a typical server. + The cache <strong>bolts onto</strong> the front of the server, and the + majority of server processing is avoided.</p> + + <p>When disabled, the cache operates as a normal handler, and is subject to + the full set of phases when handling a server request. While this mode is + slower than the default, it allows the cache to be used in cases where full + processing is required, such as when content is subject to authorization.</p> + + <pre class="prettyprint lang-config"># Run cache as a normal handler +CacheQuickHandler off</pre> + + + <p>It is also possible, when the quick handler is disabled, for the + administrator to choose the precise location within the filter chain where + caching is to be performed, by adding the <strong>CACHE</strong> filter to + the chain.</p> + + <pre class="prettyprint lang-config"># Cache content before mod_include and mod_deflate +CacheQuickHandler off +AddOutputFilterByType CACHE;INCLUDES;DEFLATE text/html</pre> + + + <p>If the CACHE filter is specified more than once, the last instance will + apply.</p> + + +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="CacheStaleOnError" id="CacheStaleOnError">CacheStaleOnError</a> <a name="cachestaleonerror" id="cachestaleonerror">Directive</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Serve stale content in place of 5xx responses.</td></tr> +<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>CacheStaleOnError <var>on|off</var></code></td></tr> +<tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>CacheStaleOnError on</code></td></tr> +<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host, directory, .htaccess</td></tr> +<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Extension</td></tr> +<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_cache</td></tr> +<tr><th><a href="directive-dict.html#Compatibility">Compatibility:</a></th><td>Available in Apache 2.3.9 and later</td></tr> +</table> + <p>When the <code class="directive">CacheStaleOnError</code> directive + is switched on, and when stale data is available in the cache, the cache will + respond to 5xx responses from the backend by returning the stale data instead of + the 5xx response. While the Cache-Control headers sent by clients will be respected, + and the raw 5xx responses returned to the client on request, the 5xx response so + returned to the client will not invalidate the content in the cache.</p> + + <pre class="prettyprint lang-config"># Serve stale data on error. +CacheStaleOnError on</pre> + + + +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="CacheStoreExpired" id="CacheStoreExpired">CacheStoreExpired</a> <a name="cachestoreexpired" id="cachestoreexpired">Directive</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Attempt to cache responses that the server reports as expired</td></tr> +<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>CacheStoreExpired On|Off</code></td></tr> +<tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>CacheStoreExpired Off</code></td></tr> +<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host, directory, .htaccess</td></tr> +<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Extension</td></tr> +<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_cache</td></tr> +</table> + <p>Since httpd 2.2.4, responses which have already expired are not + stored in the cache. The <code class="directive">CacheStoreExpired</code> + directive allows this behavior to be overridden. + <code class="directive">CacheStoreExpired</code> On + tells the server to attempt to cache the resource if it is stale. + Subsequent requests would trigger an If-Modified-Since request of + the origin server, and the response may be fulfilled from cache + if the backend resource has not changed.</p> + + <pre class="prettyprint lang-config">CacheStoreExpired On</pre> + + +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="CacheStoreNoStore" id="CacheStoreNoStore">CacheStoreNoStore</a> <a name="cachestorenostore" id="cachestorenostore">Directive</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Attempt to cache requests or responses that have been marked as no-store.</td></tr> +<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>CacheStoreNoStore On|Off</code></td></tr> +<tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>CacheStoreNoStore Off</code></td></tr> +<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host, directory, .htaccess</td></tr> +<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Extension</td></tr> +<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_cache</td></tr> +</table> + <p>Ordinarily, requests or responses with <code>Cache-Control: no-store</code> header + values will not be stored in the cache. The + <code class="directive">CacheStoreNoStore</code> directive allows this + behavior to be overridden. <code class="directive">CacheStoreNoStore</code> On + tells the server to attempt to cache the resource even if it contains + no-store header values. Resources requiring authorization will + <em>never</em> be cached.</p> + + <pre class="prettyprint lang-config">CacheStoreNoStore On</pre> + + + <div class="warning"><h3>Warning:</h3> + As described in RFC 2616, the no-store directive is intended to + "prevent the inadvertent release or retention of sensitive information + (for example, on backup tapes)." Enabling this option could store + sensitive information in the cache. You are hereby warned. + </div> + +<h3>See also</h3> +<ul> +<li><code class="directive"><a href="#cacheignorecachecontrol">CacheIgnoreCacheControl</a></code></li> +<li><code class="directive"><a href="#cachestoreprivate">CacheStorePrivate</a></code></li> +</ul> +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="CacheStorePrivate" id="CacheStorePrivate">CacheStorePrivate</a> <a name="cachestoreprivate" id="cachestoreprivate">Directive</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Attempt to cache responses that the server has marked as private</td></tr> +<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>CacheStorePrivate On|Off</code></td></tr> +<tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>CacheStorePrivate Off</code></td></tr> +<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host, directory, .htaccess</td></tr> +<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Extension</td></tr> +<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_cache</td></tr> +</table> + <p>Ordinarily, responses with <code>Cache-Control: private</code> header values will not + be stored in the cache. The <code class="directive">CacheStorePrivate</code> + directive allows this behavior to be overridden. + <code class="directive">CacheStorePrivate</code> On + tells the server to attempt to cache the resource even if it contains + private header values. Resources requiring authorization will + <em>never</em> be cached.</p> + + <pre class="prettyprint lang-config">CacheStorePrivate On</pre> + + + <div class="warning"><h3>Warning:</h3> + This directive will allow caching even if the upstream server has + requested that the resource not be cached. This directive is only + ideal for a 'private' cache. + </div> + +<h3>See also</h3> +<ul> +<li><code class="directive"><a href="#cacheignorecachecontrol">CacheIgnoreCacheControl</a></code></li> +<li><code class="directive"><a href="#cachestorenostore">CacheStoreNoStore</a></code></li> +</ul> +</div> +</div> +<div class="bottomlang"> +<p><span>Available Languages: </span><a href="../en/mod/mod_cache.html" title="English"> en </a> | +<a href="../fr/mod/mod_cache.html" hreflang="fr" rel="alternate" title="Français"> fr </a> | +<a href="../ja/mod/mod_cache.html" hreflang="ja" rel="alternate" title="Japanese"> ja </a> | +<a href="../ko/mod/mod_cache.html" hreflang="ko" rel="alternate" title="Korean"> ko </a></p> +</div><div class="top"><a href="#page-header"><img src="../images/up.gif" alt="top" /></a></div><div class="section"><h2><a id="comments_section" name="comments_section">Comments</a></h2><div class="warning"><strong>Notice:</strong><br />This is not a Q&A section. 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\ No newline at end of file diff --git a/docs/manual/mod/mod_cache.html.fr.utf8 b/docs/manual/mod/mod_cache.html.fr.utf8 new file mode 100644 index 0000000..d42711c --- /dev/null +++ b/docs/manual/mod/mod_cache.html.fr.utf8 @@ -0,0 +1,1187 @@ +<?xml version="1.0" encoding="UTF-8"?> +<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> +<html xmlns="http://www.w3.org/1999/xhtml" lang="fr" xml:lang="fr"><head> +<meta content="text/html; charset=UTF-8" http-equiv="Content-Type" /> +<!-- + XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX + This file is generated from xml source: DO NOT EDIT + XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX + --> +<title>mod_cache - Serveur HTTP Apache Version 2.4</title> +<link href="../style/css/manual.css" rel="stylesheet" media="all" type="text/css" title="Main stylesheet" /> +<link href="../style/css/manual-loose-100pc.css" rel="alternate stylesheet" media="all" type="text/css" title="No Sidebar - Default font size" /> +<link href="../style/css/manual-print.css" rel="stylesheet" media="print" type="text/css" /><link rel="stylesheet" type="text/css" href="../style/css/prettify.css" /> +<script src="../style/scripts/prettify.min.js" type="text/javascript"> +</script> + +<link href="../images/favicon.ico" rel="shortcut icon" /></head> +<body> +<div id="page-header"> +<p class="menu"><a href="../mod/">Modules</a> | <a href="../mod/directives.html">Directives</a> | <a href="http://wiki.apache.org/httpd/FAQ">FAQ</a> | <a href="../glossary.html">Glossaire</a> | <a href="../sitemap.html">Plan du site</a></p> +<p class="apache">Serveur HTTP Apache Version 2.4</p> +<img alt="" src="../images/feather.png" /></div> +<div class="up"><a href="./"><img title="<-" alt="<-" src="../images/left.gif" /></a></div> +<div id="path"> +<a href="http://www.apache.org/">Apache</a> > <a href="http://httpd.apache.org/">Serveur HTTP</a> > <a href="http://httpd.apache.org/docs/">Documentation</a> > <a href="../">Version 2.4</a> > <a href="./">Modules</a></div> +<div id="page-content"> +<div id="preamble"><h1>Module Apache mod_cache</h1> +<div class="toplang"> +<p><span>Langues Disponibles: </span><a href="../en/mod/mod_cache.html" hreflang="en" rel="alternate" title="English"> en </a> | +<a href="../fr/mod/mod_cache.html" title="Français"> fr </a> | +<a href="../ja/mod/mod_cache.html" hreflang="ja" rel="alternate" title="Japanese"> ja </a> | +<a href="../ko/mod/mod_cache.html" hreflang="ko" rel="alternate" title="Korean"> ko </a></p> +</div> +<table class="module"><tr><th><a href="module-dict.html#Description">Description:</a></th><td>Filtre de mise en cache HTTP conforme à la RFC 2616</td></tr> +<tr><th><a href="module-dict.html#Status">Statut:</a></th><td>Extension</td></tr> +<tr><th><a href="module-dict.html#ModuleIdentifier">Identificateur de Module:</a></th><td>cache_module</td></tr> +<tr><th><a href="module-dict.html#SourceFile">Fichier Source:</a></th><td>mod_cache.c</td></tr></table> +<h3>Sommaire</h3> + + <div class="warning">Ce module doit être utilisé avec précautions + car lorsque la directive <code class="directive"><a href="#cachequickhandler">CacheQuickHandler</a></code> est définie à sa + valeur par défaut <strong>on</strong>, les directives <code class="directive"><a href="../mod/mod_access_compat.html#allow">Allow</a></code> and <code class="directive"><a href="../mod/mod_access_compat.html#deny">Deny</a></code> sont court-circuitées. Vous + ne devez donc pas activer la gestion rapide de la mise en cache pour + un contenu auquel vous souhaitez limiter l'accès en fonction du nom + d'hôte du client, de l'adresse IP ou d'une variable + d'environnement.</div> + + <p><code class="module"><a href="../mod/mod_cache.html">mod_cache</a></code> implémente un <strong>filtre de mise + en cache de contenu HTTP</strong> conforme à la <a href="http://www.ietf.org/rfc/rfc2616.txt">RFC 2616</a>, avec + support de la mise en cache des réponses dont le contenu a été + négocié et comportant l'en-tête Vary.</p> + + <p>La mise en cache conforme à la RFC 2616 fournit un mécanisme + permettant de vérifier si un contenu expiré ou dépassé est encore à + jour, et peut apporter un gain de performances significatif si le + serveur original supporte les <strong>requêtes + conditionnelles</strong> en prenant en compte l'en-tête de requête + HTTP <a href="http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.26">If-None-Match</a>. + Le contenu n'est ainsi régénéré que lorsqu'il a été modifié, et non + lorsqu'il a expiré.</p> + + <p>En tant que filtre, <code class="module"><a href="../mod/mod_cache.html">mod_cache</a></code> peut être placé + en face d'un contenu issu de tout gestionnaire, y compris + <strong>des fichiers à accès séquentiel</strong> (servis depuis un + disque lent mis en + cache sur un gros disque), la sortie d'un <strong>script + CGI</strong> ou d'un <strong>générateur de contenu + dynamique</strong>, ou du contenu <strong>mandaté depuis un autre + serveur</strong>.</p> + + <p>Dans la configuration par défaut, <code class="module"><a href="../mod/mod_cache.html">mod_cache</a></code> + place le filtre de mise en cache aussi loin que possible dans la + pile de filtres, utilisant le <strong>gestionnaire rapide</strong> + pour court-circuiter tout traitement par requête lors de l'envoi du + contenu au client. Dans ce mode opératoire, + <code class="module"><a href="../mod/mod_cache.html">mod_cache</a></code> peut être considéré comme un serveur + mandataire avec cache fixé en tête du serveur web, alors qu'il + s'exécute dans ce même serveur web.</p> + + <p>Lorsque le gestionnaire rapide est désactivé via la directive + <code class="directive"><a href="#cachequickhandler">CacheQuickHandler</a></code>, il + devient possible d'insérer le filtre <strong>CACHE</strong> à un + point de la pile de filtres choisi par l'administrateur. Ceci permet + de mettre en cache un contenu avant que celui-ci ne soit + personnalisé par le filtre <code class="module"><a href="../mod/mod_include.html">mod_include</a></code>, ou + éventuellement compressé par le filtre <code class="module"><a href="../mod/mod_deflate.html">mod_deflate</a></code>.</p> + + <p>Dans le mode de fonctionnement normal, <code class="module"><a href="../mod/mod_cache.html">mod_cache</a></code> + peut être contrôlé par les en-têtes <a href="http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.9">Cache-Control</a> + et <a href="http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.32">Pragma</a> + envoyés par un client dans une requête, ou par un serveur dans une + réponse. Dans des circonstances exceptionnelles, + <code class="module"><a href="../mod/mod_cache.html">mod_cache</a></code> peut cependant être configuré pour + outrepasser ces en-têtes et forcer un comportement spécifique au + site, bien qu'un tel comportement sera limité à ce cache seulement, + et n'affectera pas les opérations des autres caches qui peuvent + s'insérer entre le client et le serveur, et ce type de configuration + ne doit donc être utiliser qu'en cas de nécessité absolue.</p> + + <p>La RFC 2616 permet au cache de renvoyer des données périmées + pendant que l'entrée périmée correspondante est mise à jour depuis + le serveur original, et <code class="module"><a href="../mod/mod_cache.html">mod_cache</a></code> supporte cette + fonctionnalité lorsque la directive <code class="directive"><a href="#cachelock">CacheLock</a></code> est configurée en + conséquence. De telles réponses comportent un en-tête HTTP <a href="http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.46">Warning</a> + contenant un code de réponse 110. La RFC 2616 permet aussi au cache + de renvoyer des données périmées lorsque la tentative de mise à jour + des données périmées renvoie une erreur 500 ou supérieure, et cette + fonctionnalité est supportée par défaut par + <code class="module"><a href="../mod/mod_cache.html">mod_cache</a></code>. De telles réponses comportent un en-tête HTTP <a href="http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.46">Warning</a> + contenant un code de réponse 111.</p> + + <p><code class="module"><a href="../mod/mod_cache.html">mod_cache</a></code> requiert les services d'un ou + plusieurs modules de gestion de stockage. La distribution Apache de base + inclut les modules de gestion de stockage suivants :</p> + <dl> + <dt><code class="module"><a href="../mod/mod_cache_disk.html">mod_cache_disk</a></code></dt> + + <dd>implémente un gestionnaire de stockage sur disque. Les en-têtes + et corps sont stockés séparément sur le disque dans une structure de + répertoires basée sur le condensé md5 de l'URL mise en cache. + Plusieurs réponses à contenu négocié peuvent être stockées en même + temps, mais la mise en cache de contenus partiels n'est pas + supportée par ce module. L'utilitaire + <code class="program"><a href="../programs/htcacheclean.html">htcacheclean</a></code> permet de lister et de supprimer les + URLs mises en cache, et de maintenir le cache en deçà de + certaines limites de taille et de nombre d'inodes.</dd> + <dt><code class="module"><a href="../mod/mod_cache_socache.html">mod_cache_socache</a></code></dt> + <dd>Implémente un gestionnaire de stockage basé sur un cache d'objets + partagés. Les en-têtes et corps sont stockés ensemble sous une seule + clé basée sur l'URL de la réponse mise en cache. Des réponses à + contenus multiples négociés peuvent être stockées simultanément, mais + ce module ne supporte pas la mise en cache de contenus partiels.</dd> + </dl> + + <p>Pour de plus amples détails, une description, et des exemples, + reportez-vous au <a href="../caching.html">Guide de la mise en + cache</a>.</p> +</div> +<div id="quickview"><a href="https://www.apache.org/foundation/contributing.html" class="badge"><img src="https://www.apache.org/images/SupportApache-small.png" alt="Support Apache!" /></a><h3>Sujets</h3> +<ul id="topics"> +<li><img alt="" src="../images/down.gif" /> <a href="#related">Modules apparentés et directives</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#sampleconf">Exemple de configuration</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#thunderingherd">Eviter une tempête de requête</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#finecontrol">Contrôle fin via le filtre CACHE</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#status">Etat du cache et journalisation</a></li> +</ul><h3 class="directives">Directives</h3> +<ul id="toc"> +<li><img alt="" src="../images/down.gif" /> <a href="#cachedefaultexpire">CacheDefaultExpire</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cachedetailheader">CacheDetailHeader</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cachedisable">CacheDisable</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cacheenable">CacheEnable</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cacheheader">CacheHeader</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cacheignorecachecontrol">CacheIgnoreCacheControl</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cacheignoreheaders">CacheIgnoreHeaders</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cacheignorenolastmod">CacheIgnoreNoLastMod</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cacheignorequerystring">CacheIgnoreQueryString</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cacheignoreurlsessionidentifiers">CacheIgnoreURLSessionIdentifiers</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cachekeybaseurl">CacheKeyBaseURL</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cachelastmodifiedfactor">CacheLastModifiedFactor</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cachelock">CacheLock</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cachelockmaxage">CacheLockMaxAge</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cachelockpath">CacheLockPath</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cachemaxexpire">CacheMaxExpire</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cacheminexpire">CacheMinExpire</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cachequickhandler">CacheQuickHandler</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cachestaleonerror">CacheStaleOnError</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cachestoreexpired">CacheStoreExpired</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cachestorenostore">CacheStoreNoStore</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cachestoreprivate">CacheStorePrivate</a></li> +</ul> +<h3>Traitement des bugs</h3><ul class="seealso"><li><a href="https://www.apache.org/dist/httpd/CHANGES_2.4">Journal des modifications de httpd</a></li><li><a href="https://bz.apache.org/bugzilla/buglist.cgi?bug_status=__open__&list_id=144532&product=Apache%20httpd-2&query_format=specific&order=changeddate%20DESC%2Cpriority%2Cbug_severity&component=mod_cache">Problèmes connus</a></li><li><a href="https://bz.apache.org/bugzilla/enter_bug.cgi?product=Apache%20httpd-2&component=mod_cache">Signaler un bug</a></li></ul><h3>Voir aussi</h3> +<ul class="seealso"> +<li><a href="../caching.html">Guide de la mise en +cache</a></li> +<li><a href="#comments_section">Commentaires</a></li></ul></div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="section"> +<h2><a name="related" id="related">Modules apparentés et directives</a></h2> + <table class="related"><tr><th>Modules Apparentés</th><th>Directives Apparentées</th></tr><tr><td><ul><li><code class="module"><a href="../mod/mod_cache_socache.html">mod_cache_socache</a></code></li></ul></td><td><ul><li><code class="directive"><a href="../mod/mod_cache_disk.html#cacheroot">CacheRoot</a></code></li><li><code class="directive"><a href="../mod/mod_cache_disk.html#cachedirlevels">CacheDirLevels</a></code></li><li><code class="directive"><a href="../mod/mod_cache_disk.html#cachedirlength">CacheDirLength</a></code></li><li><code class="directive"><a href="../mod/mod_cache_disk.html#cacheminfilesize">CacheMinFileSize</a></code></li><li><code class="directive"><a href="../mod/mod_cache_disk.html#cachemaxfilesize">CacheMaxFileSize</a></code></li><li><code class="directive"><a href="../mod/mod_cache_socache.html#cachesocache">CacheSocache</a></code></li><li><code class="directive"><a href="../mod/mod_cache_socache.html#cachesocachemaxtime">CacheSocacheMaxTime</a></code></li><li><code class="directive"><a href="../mod/mod_cache_socache.html#cachesocachemintime">CacheSocacheMinTime</a></code></li><li><code class="directive"><a href="../mod/mod_cache_socache.html#cachesocachemaxsize">CacheSocacheMaxSize</a></code></li><li><code class="directive"><a href="../mod/mod_cache_socache.html#cachesocachereadsize">CacheSocacheReadSize</a></code></li><li><code class="directive"><a href="../mod/mod_cache_socache.html#cachesocachereadtime">CacheSocacheReadTime</a></code></li></ul></td></tr></table> +</div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="section"> +<h2><a name="sampleconf" id="sampleconf">Exemple de configuration</a></h2> + <div class="example"><h3>Extrait de httpd.conf</h3><pre class="prettyprint lang-config"># +# Exemple de configuration du cache +# +LoadModule cache_module modules/mod_cache.so +<IfModule mod_cache.c> + LoadModule cache_disk_module modules/mod_cache_disk.so + <IfModule mod_cache_disk.c> + CacheRoot "c:/cacheroot" + CacheEnable disk "/" + CacheDirLevels 5 + CacheDirLength 3 + </IfModule> + + # Lorsqu'on sert de mandataire, on ne met pas en cache la liste +# des mises à jour de sécurité + CacheDisable "http://security.update.server/update-list/" +</IfModule></pre> +</div> +</div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="section"> +<h2><a name="thunderingherd" id="thunderingherd">Eviter une tempête de requête</a></h2> + <p>Lorsqu'une entrée du cache est périmée, <code class="module"><a href="../mod/mod_cache.html">mod_cache</a></code> + soumet une requête conditionnelle au processus d'arrière-plan, qui est + censé confirmer la validité de l'entrée du cache, ou dans la négative + envoyer une entrée mise à jour.</p> + <p>Un court mais non négligeable laps de temps existe entre le moment + où l'entrée du cache est périmée, et le moment où elle est mise à + jour. Sur un serveur fortement chargé, un certain nombre de requêtes + peut arriver pendant ce laps de temps, et provoquer une + <strong>tempête</strong> de requêtes susceptibles de saturer le + processus d'arrière-plan de manière soudaine et imprédictible.</p> + <p>Pour contenir cette tempête, on peut utiliser la directive <code class="directive"><a href="#cachelock">CacheLock</a></code> afin de définir un répertoire où + seront créés <strong>à la volée</strong> des verrous pour les URLs. Ces + verrous sont utilisés comme autant d'<strong>indications</strong> par les + autres requêtes, soit pour empêcher une tentative de mise en cache (un autre + processus est en train de récupérer l'entité), soit pour indiquer qu'une + entrée périmée est en cours de mise à jour (pendant ce temps, c'est le contenu + périmé qui sera renvoyé). + </p> + <h3>Mise en cache initiale d'une entrée</h3> + + <p>Lorsqu'une entité est mise en cache pour la première fois, un + verrou est créé pour cette entité jusqu'à ce que la réponse ait été + entièrement mise en cache. Pendant la durée de vie du verrou, le + cache va empêcher une seconde tentative de mise en cache de la même + entité. Bien que cela ne suffise pas à contenir la tempête de + requêtes, toute tentative de mettre en cache la même entité + plusieurs fois simultanément est stoppée. + </p> + + <h3>Mise à jour d'une entrée périmée</h3> + + <p>Lorsqu'une entrée atteint la limite de sa durée de vie, et + devient par conséquent périmée, un verrou est créé pour cette entité + jusqu'à ce que la réponse ait été soit confirmée comme encore + valide, soit remplacée par le processus d'arrière-plan. Pendant la + durée de vie du verrou, une seconde requête entrante va provoquer le + renvoi de la donnée périmée, et la tempête de requêtes sera + contenue.</p> + + <h3>Verrous et en-tête Cache-Control: no-cache</h3> + + <p>Les verrous ne sont utilisés <strong>qu'à titre + indicatif</strong> pour enjoindre le cache à être plus coopératif + avec les serveurs d'arrière-plan, et il est possible de passer outre + si nécessaire. Si le client envoie une requête contenant un en-tête + Cache-Control imposant un nouveau téléchargement de l'entité, tout + verrou éventuel sera ignoré, la requête du client sera honorée + immédiatement, et l'entrée du cache mise à jour.</p> + + <p>Comme mécanisme de sécurité supplémentaire, la durée de vie maximale des + verrous est configurable. Lorsque cette limite est atteinte, le verrou est + supprimé et une autre requête peut alors en créer un nouveau. Cette durée de + vie peut être définie via la directive <code class="directive"><a href="#cachemaxexpire">CacheMaxExpire</a></code>, et sa valeur par défaut est + de 5 secondes. + </p> + + <h3>Exemple de configuration</h3> + + <div class="example"><h3>Activation du verrouillage du cache</h3><pre class="prettyprint lang-config"># +# Active le verrouillage du cache +# +<IfModule mod_cache.c> + CacheLock on + CacheLockPath "/tmp/mod_cache-lock" + CacheLockMaxAge 5 +</IfModule></pre> +</div> + +</div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="section"> +<h2><a name="finecontrol" id="finecontrol">Contrôle fin via le filtre CACHE</a></h2> + <p>Dans son mode de fonctionnement par défaut, le cache s'exécute sous + la forme d'un gestionnaire rapide, court-circuitant la majorité des + traitements du serveur et fournissant ainsi une mise en cache + possédant les plus hautes performances disponibles.</p> + + <p>Dans ce mode, le cache <strong>s'incruste</strong> devant le + serveur, comme si un mandataire de mise en cache indépendant RFC 2616 + était placé devant ce dernier.</p> + + <p>Bien que que ce mode offre les meilleures performances, les + administrateurs peuvent souhaiter, dans certaines circonstances, + effectuer des traitements sur la requête après que cette dernière ait + été mise en cache, comme ajouter du contenu personnalisé à la page + mise en cache, ou appliquer des restrictions d'autorisations au + contenu. Pour y parvenir, l'administrateur sera alors souvent forcé de + placer des serveurs mandataires inverses indépendants soit derrière, + soit devant le serveur de mise en cache.</p> + + <p>Pour résoudre ce problème, la directive <code class="directive"><a href="#cachequickhandler">CacheQuickHandler</a></code> peut être définie à + <strong>off</strong>, afin que le serveur traite toutes les phases + normalement exécutées par une requête non mise en cache, y compris les + phases <strong>d'authentification et d'autorisation</strong>.</p> + + <p>En outre, l'administrateur peut éventuellement spécifier le + <strong>point précis dans la chaîne de filtrage</strong> où devra + intervenir la mise en cache en ajoutant le filtre + <strong>CACHE</strong> à la chaîne de filtrage en sortie.</p> + + <p>Par exemple, pour mettre en cache le contenu avant d'appliquer une + compression à la réponse, placez le filtre <strong>CACHE</strong> + avant le filtre <strong>DEFLATE</strong> comme dans l'exemple suivant + :</p> + + <pre class="prettyprint lang-config"># Mise en cache du contenu avant la compression optionnelle +CacheQuickHandler off +AddOutputFilterByType CACHE;DEFLATE text/plain</pre> + + + <p>Une autre possibilité consiste à mettre en cache le contenu avant + l'ajout de contenu personnalisé via <code class="module"><a href="../mod/mod_include.html">mod_include</a></code> (ou + tout autre filtre de traitement de contenu). Dans l'exemple suivant, + les modèles contenant des balises comprises par + <code class="module"><a href="../mod/mod_include.html">mod_include</a></code> sont mis en cache avant d'être + interprétés :</p> + + <pre class="prettyprint lang-config"># Mise en cache du contenu avant l'intervention de mod_include et + # mod_deflate +CacheQuickHandler off +AddOutputFilterByType CACHE;INCLUDES;DEFLATE text/html</pre> + + + <p>Vous pouvez insérer le filtre <strong>CACHE</strong> en tout point + de la chaîne de filtrage. Dans l'exemple suivant, le contenu est mis + en cache après avoir été interprété par <code class="module"><a href="../mod/mod_include.html">mod_include</a></code>, + mais avant d'être traité par <code class="module"><a href="../mod/mod_deflate.html">mod_deflate</a></code> :</p> + + <pre class="prettyprint lang-config"># Mise en cache du contenu entre les interventions de mod_include et + # mod_deflate +CacheQuickHandler off +AddOutputFilterByType INCLUDES;CACHE;DEFLATE text/html</pre> + + + <div class="warning"><h3>Avertissement :</h3>Si pour une raison + ou pour une autre, le point d'insertion du filtre + <strong>CACHE</strong> dans la chaîne de filtrage est modifié, vous + devez <strong>vider votre cache</strong> pour être sûr que les données + servies soient à jour. En effet, <code class="module"><a href="../mod/mod_cache.html">mod_cache</a></code> n'est pas + en mesure d'effectuer cette opération à votre place.</div> + +</div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="section"> +<h2><a name="status" id="status">Etat du cache et journalisation</a></h2> + <p>Lorsque <code class="module"><a href="../mod/mod_cache.html">mod_cache</a></code> a décidé s'il devait ou non + servir une entité depuis le cache, les raisons précises de cette + décision sont enregistrées dans l'environnement du sous-processus + interne à la requête sous la clé <strong>cache-status</strong>. + Cette information peut être journalisée via la directive <code class="directive"><a href="../mod/mod_log_config.html#logformat">LogFormat</a></code> comme suit :</p> + + <pre class="prettyprint lang-config">LogFormat "%{cache-status}e ..."</pre> + + + <p>En fonction de la décision prise, l'information est aussi écrite + dans l'environnement du sous-processus sous une des quatre clés + suivantes :</p> + + <dl> + <dt>cache-hit</dt><dd>Le contenu a été servi depuis le cache.</dd> + <dt>cache-revalidate</dt><dd>Le contenu du cache était périmé, a été + mis à jour avec succès, puis servi depuis le cache.</dd> + <dt>cache-miss</dt><dd>Le contenu n'était pas dans le cache et a été + servi directement depuis le serveur demandé.</dd> + <dt>cache-invalidate</dt><dd>L'entité du cache est devenue invalide + suite à une requête d'un type autre que GET ou HEAD.</dd> + </dl> + + <p>Il est alors possible d'envisager une journalisation conditionnelle + du traitement des requêtes par rapport au cache comme dans l'exemple + suivant :</p> + + <pre class="prettyprint lang-config">CustomLog "cached-requests.log" common env=cache-hit +CustomLog "uncached-requests.log" common env=cache-miss +CustomLog "revalidated-requests.log" common env=cache-revalidate +CustomLog "invalidated-requests.log" common env=cache-invalidate</pre> + + + <p>Pour les concepteurs de modules, une accroche (hook) nommée + <var>cache_status</var> est disponible et permet aux modules de + répondre aux résultats de la vérification du cache ci-dessus de manière + personnalisée.</p> + +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="cachedefaultexpire" id="cachedefaultexpire">Directive</a> <a name="CacheDefaultExpire" id="CacheDefaultExpire">CacheDefaultExpire</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>La durée par défaut de mise en cache d'un document +lorsqu'aucune date d'expiration n'a été spécifiée.</td></tr> +<tr><th><a href="directive-dict.html#Syntax">Syntaxe:</a></th><td><code>CacheDefaultExpire <var>secondes</var></code></td></tr> +<tr><th><a href="directive-dict.html#Default">Défaut:</a></th><td><code>CacheDefaultExpire 3600 (une heure)</code></td></tr> +<tr><th><a href="directive-dict.html#Context">Contexte:</a></th><td>configuration globale, serveur virtuel, répertoire, .htaccess</td></tr> +<tr><th><a href="directive-dict.html#Status">Statut:</a></th><td>Extension</td></tr> +<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_cache</td></tr> +</table> + <p>La directive <code class="directive">CacheDefaultExpire</code> permet de + spécifier un temps par défaut, en secondes, pendant lequel sera conservé + dans le cache un document qui ne possède ni date d'expiration, ni date de + dernière modification. La valeur de cette directive n'est <em>pas</em> + écrasée par la valeur de la directive <code class="directive"><a href="#cachemaxexpire">CacheMaxExpire</a></code>, même si cette dernière est + utilisée.</p> + + <pre class="prettyprint lang-config">CacheDefaultExpire 86400</pre> + + +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="cachedetailheader" id="cachedetailheader">Directive</a> <a name="CacheDetailHeader" id="CacheDetailHeader">CacheDetailHeader</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Ajoute un en-tête X-Cache-Detail à la réponse.</td></tr> +<tr><th><a href="directive-dict.html#Syntax">Syntaxe:</a></th><td><code>CacheDetailHeader <var>on|off</var></code></td></tr> +<tr><th><a href="directive-dict.html#Default">Défaut:</a></th><td><code>CacheDetailHeader off</code></td></tr> +<tr><th><a href="directive-dict.html#Context">Contexte:</a></th><td>configuration globale, serveur virtuel, répertoire, .htaccess</td></tr> +<tr><th><a href="directive-dict.html#Status">Statut:</a></th><td>Extension</td></tr> +<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_cache</td></tr> +<tr><th><a href="directive-dict.html#Compatibility">Compatibilité:</a></th><td>Disponible depuis la version 2.3.9 d'Apache</td></tr> +</table> + <p>Lorsque la directive <code class="directive">CacheDetailHeader</code> est définie à + on, un en-tête <strong>X-Cache-Detail</strong> est ajouté à la réponse et + contient les raisons précises d'une décision d'utilisation du cache vis à vis + de cette dernière.</p> + + <p>Ceci peut s'avérer utile au cours du développement de services + RESTful mis en cache pour obtenir des informations supplémentaires à + propos des décisions vis à vis du cache écrites dans les en-têtes de + la réponse. Il est ainsi possible de vérifier si + <code>Cache-Control</code> et d'autres en-têtes ont été correctement + utilisés par le service et le client.</p> + + <p>Si le gestionnaire normal est utilisé, cette directive peut se situer dans + une section <code class="directive"><a href="../mod/core.html#directory"><Directory></a></code> ou + <code class="directive"><a href="../mod/core.html#location"><Location></a></code>. Si c'est le + gestionnaire rapide qui est utilisé, elle doit se situer dans un contexte de + serveur principal ou de serveur virtuel, sinon elle sera ignorée.</p> + + <pre class="prettyprint lang-config"># Active l'en-tête X-Cache-Detail +CacheDetailHeader on</pre> + + + <div class="example"><p><code> + X-Cache-Detail: "conditional cache hit: entity refreshed" from localhost<br /> + </code></p></div> + + +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="cachedisable" id="cachedisable">Directive</a> <a name="CacheDisable" id="CacheDisable">CacheDisable</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Désactive la mise en cache des URLs +spécifiées</td></tr> +<tr><th><a href="directive-dict.html#Syntax">Syntaxe:</a></th><td><code>CacheDisable <var>chaîne-url</var> | <var>on</var></code></td></tr> +<tr><th><a href="directive-dict.html#Context">Contexte:</a></th><td>configuration globale, serveur virtuel, répertoire, .htaccess</td></tr> +<tr><th><a href="directive-dict.html#Status">Statut:</a></th><td>Extension</td></tr> +<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_cache</td></tr> +</table> + <p>La directive <code class="directive">CacheDisable</code> enjoint + <code class="module"><a href="../mod/mod_cache.html">mod_cache</a></code> de <em>ne pas</em> mettre en cache l'URL + spécifiée par <var>chaîne URL</var>, ainsi que les URLs de niveaux + inférieurs.</p> + + <div class="example"><h3>Exemple</h3><pre class="prettyprint lang-config">CacheDisable "/fichiers_locaux"</pre> +</div> + + <p>Si la directive se trouve à l'intérieur d'une section <code class="directive"><a href="../mod/core.html#location"><Location></a></code>, le chemin doit être + spécifié en dessous de la Location, et si le mot "on" est utilisé, la mise + en cache sera désactivée pour l'ensemble de l'arborescence concernée par la + section Location.</p> + + <div class="example"><h3>Exemple</h3><pre class="prettyprint lang-config"><Location "/foo"> + CacheDisable on +</Location></pre> +</div> + + <p>Avec les versions 2.2.12 et ultérieures, on peut définir la + variable d'environnement <code>no-cache</code> pour une définition + plus fine des ressources à mettre en cache.</p> + +<h3>Voir aussi</h3> +<ul> +<li><a href="../env.html">Les variables d'environnement dans +Apache</a></li> +</ul> +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="cacheenable" id="cacheenable">Directive</a> <a name="CacheEnable" id="CacheEnable">CacheEnable</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Active la mise en cache des URLs spécifiées en utilisant le +gestionnaire de stockage précisé</td></tr> +<tr><th><a href="directive-dict.html#Syntax">Syntaxe:</a></th><td><code>CacheEnable <var>type de cache</var> [<var>chaîne +URL</var>]</code></td></tr> +<tr><th><a href="directive-dict.html#Context">Contexte:</a></th><td>configuration globale, serveur virtuel, répertoire</td></tr> +<tr><th><a href="directive-dict.html#Status">Statut:</a></th><td>Extension</td></tr> +<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_cache</td></tr> +<tr><th><a href="directive-dict.html#Compatibility">Compatibilité:</a></th><td>Une chaîne URL telle que '/' s'appliquait à tout contenu +en mandat direct dans les versions 2.2 et antérieures.</td></tr> +</table> + <p>La directive <code class="directive">CacheEnable</code> enjoint + <code class="module"><a href="../mod/mod_cache.html">mod_cache</a></code> de mettre en cache l'URL précisée par + <var>chaîne URL</var>, ainsi que les URLs de niveaux inférieurs. Le + gestionnaire de stockage du cache est spécifié à l'aide de l'argument + <var>type de cache</var>. La directive <code class="directive">CacheEnable</code> + peut être placée à l'intérieur d'une section <code class="directive"><a href="../mod/core.html#location"><Location></a></code> ou <code class="directive"><a href="../mod/core.html#locationmatch"><LocationMatch></a></code> pour indiquer que le contenu + considéré peut être mis en cache. Si <var>type de cache</var> a pour valeur + <code>disk</code>, <code class="module"><a href="../mod/mod_cache.html">mod_cache</a></code> utilisera le gestionnaire de + stockage sur disque implémenté par + <code class="module"><a href="../mod/mod_cache_disk.html">mod_cache_disk</a></code>. Pour que <code class="module"><a href="../mod/mod_cache.html">mod_cache</a></code> + utilise le gestionnaire de stockage basé sur le cache d'objets + partagés implémenté par <code class="module"><a href="../mod/mod_cache_socache.html">mod_cache_socache</a></code>, + spécifiez <code>socache</code> comme valeur du paramètre <var>type + de cache</var>.</p> + <p>Si les différentes directives <code class="directive">CacheEnable</code> + spécifient des URLs qui se recoupent (comme dans l'exemple + ci-dessous), tous les gestionnaires de stockage possibles seront + lancés, jusqu'au premier d'entre eux qui traitera effectivement la + requête. + L'ordre dans lequel les gestionnaires de stockage sont lancés est déterminé + par l'ordre dans lequel apparaissent les directives + <code class="directive">CacheEnable</code> dans le fichier de configuration. Les + directives <code class="directive">CacheEnable</code> situées à l'intérieur de + sections <code class="directive"><a href="../mod/core.html#location"><Location></a></code> ou + <code class="directive"><a href="../mod/core.html#locationmatch"><LocationMatch></a></code> sont + traitées avant les directives <code class="directive">CacheEnable</code> définies au + niveau global.</p> + + <p>En fonctionnement du type serveur mandataire direct, <var>chaîne + URL</var> doit au moins débuter par un protocole pour lequel la mise + en cache doit être activée.</p> + + <pre class="prettyprint lang-config"># Mise en cache de contenu (gestionnaire normal seulement) +CacheQuickHandler off +<Location "/foo"> + CacheEnable disk +</Location> + +# Mise en cache via une expression rationnelle (gestionnaire normal seulement) +CacheQuickHandler off +<LocationMatch "foo$"> + CacheEnable disk +</LocationMatch> + +# Mise en cache de tous les contenus, à l'exception des URLs +# mandatées en direct (gestionnaire normal ou rapide) +CacheEnable disk / + +# Mise en cache des URLs FTP mandatées (gestionnaire normal ou rapide) +CacheEnable disk ftp:// + +# Mise en cache des contenus mandatés en direct depuis www.example.org (gestionnaire normal ou rapide) +CacheEnable disk http://www.example.org/</pre> + + + <p>Un nom d'hôte commençant par un caractère <strong>"*"</strong> + correspondra à tout nom d'hôte se terminant par le suffixe + considéré. Un nom d'hôte commençant par un caractère + <strong>"."</strong> correspondra à tout nom d'hôte contenant le + composant de nom de domaine qui suit ce caractère.</p> + + <pre class="prettyprint lang-config"># Correspond à www.example.org et fooexample.org +CacheEnable disk "http://*example.org/" +# Correspond à www.example.org, mais pas à fooexample.org +CacheEnable disk "http://.example.org/"</pre> + + + <p>Depuis la version 2.2.12, on peut définir la variable + d'environnement <code>no-cache</code> pour une définition plus fine + des ressources à mettre en cache.</p> + + +<h3>Voir aussi</h3> +<ul> +<li><a href="../env.html">Les variables d'environnement dans +Apache</a></li> +</ul> +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="cacheheader" id="cacheheader">Directive</a> <a name="CacheHeader" id="CacheHeader">CacheHeader</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Ajoute un en-tête X-Cache à la réponse.</td></tr> +<tr><th><a href="directive-dict.html#Syntax">Syntaxe:</a></th><td><code>CacheHeader <var>on|off</var></code></td></tr> +<tr><th><a href="directive-dict.html#Default">Défaut:</a></th><td><code>CacheHeader off</code></td></tr> +<tr><th><a href="directive-dict.html#Context">Contexte:</a></th><td>configuration globale, serveur virtuel, répertoire, .htaccess</td></tr> +<tr><th><a href="directive-dict.html#Status">Statut:</a></th><td>Extension</td></tr> +<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_cache</td></tr> +<tr><th><a href="directive-dict.html#Compatibility">Compatibilité:</a></th><td>Disponible depuis la version 2.3.9 d'Apache</td></tr> +</table> + <p>Lorsque la directive <code class="directive">CacheHeader</code> est définie à on, un + en-tête <strong>X-Cache</strong> est ajouté à la réponse et contient + l'état du cache pour cette dernière. Si le gestionnaire normal est + utilisé, cette directive peut se situer dans une section + <code class="directive"><a href="../mod/core.html#directory"><Directory></a></code> ou + <code class="directive"><a href="../mod/core.html#location"><Location></a></code>. Si c'est + le gestionnaire rapide qui est utilisé, elle doit se situer dans un + contexte de serveur principal ou de serveur virtuel, sinon elle sera + ignorée.</p> + + <dl> + <dt><strong>HIT</strong></dt><dd>Le contenu était à jour et a été + servi depuis le cache.</dd> + <dt><strong>REVALIDATE</strong></dt><dd>Le contenu était périmé, a + été mis à jour, puis a été servi depuis le cache.</dd> + <dt><strong>MISS</strong></dt><dd>Le contenu n'a pas été servi + depuis le cache, mais directement depuis le serveur demandé.</dd> + </dl> + + <pre class="prettyprint lang-config"># Active l'en-tête X-Cache +CacheHeader on</pre> + + + <pre class="prettyprint lang-config">X-Cache: HIT from localhost</pre> + + + + +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="cacheignorecachecontrol" id="cacheignorecachecontrol">Directive</a> <a name="CacheIgnoreCacheControl" id="CacheIgnoreCacheControl">CacheIgnoreCacheControl</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Ignore les en-têtes de requête enjoignant de ne pas servir +le contenu au client depuis le cache</td></tr> +<tr><th><a href="directive-dict.html#Syntax">Syntaxe:</a></th><td><code>CacheIgnoreCacheControl On|Off</code></td></tr> +<tr><th><a href="directive-dict.html#Default">Défaut:</a></th><td><code>CacheIgnoreCacheControl Off</code></td></tr> +<tr><th><a href="directive-dict.html#Context">Contexte:</a></th><td>configuration globale, serveur virtuel</td></tr> +<tr><th><a href="directive-dict.html#Status">Statut:</a></th><td>Extension</td></tr> +<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_cache</td></tr> +</table> + <p>Normalement, les requêtes contenant des en-têtes tels que + <code>Cache-Control: no-cache</code> ou Pragma: no-cache ne sont pas + servies depuis le cache. La directive + <code class="directive">CacheIgnoreCacheControl</code> permet de modifier ce + comportement. Avec <code class="directive">CacheIgnoreCacheControl + On</code>, le serveur tentera de servir la ressource depuis le + cache, même si la requête contient un des en-têtes cités plus haut. + Les ressources qui requièrent une autorisation ne seront + <em>jamais</em> mises en cache.</p> + + <pre class="prettyprint lang-config">CacheIgnoreCacheControl On</pre> + + + <div class="warning"><h3>Avertissement :</h3> + Cette directive permet de servir des ressources depuis le cache, + même si le client a demandé à ce qu'il n'en soit pas ainsi. Le + contenu servi est ainsi susceptible d'être périmé. + </div> + +<h3>Voir aussi</h3> +<ul> +<li><code class="directive"><a href="#cachestoreprivate">CacheStorePrivate</a></code></li> +<li><code class="directive"><a href="#cachestorenostore">CacheStoreNoStore</a></code></li> +</ul> +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="cacheignoreheaders" id="cacheignoreheaders">Directive</a> <a name="CacheIgnoreHeaders" id="CacheIgnoreHeaders">CacheIgnoreHeaders</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Ne pas stocker le(s) en-tête(s) spécifié(s) dans le cache. +</td></tr> +<tr><th><a href="directive-dict.html#Syntax">Syntaxe:</a></th><td><code>CacheIgnoreHeaders <var>en-tête</var> [<var>en-tête</var>] ...</code></td></tr> +<tr><th><a href="directive-dict.html#Default">Défaut:</a></th><td><code>CacheIgnoreHeaders None</code></td></tr> +<tr><th><a href="directive-dict.html#Context">Contexte:</a></th><td>configuration globale, serveur virtuel</td></tr> +<tr><th><a href="directive-dict.html#Status">Statut:</a></th><td>Extension</td></tr> +<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_cache</td></tr> +</table> + <p>En accord avec la RFC 2616, les en-têtes HTTP hop-by-hop ne sont + pas stockés dans le cache. Les en-têtes HTTP suivant sont des + en-têtes hop-by-hop, et en tant que tels, ne sont en <em>aucun</em> + cas stockés dans le cache, quelle que soit la définition de la + directive <code class="directive">CacheIgnoreHeaders</code> :</p> + + <ul> + <li><code>Connection</code></li> + <li><code>Keep-Alive</code></li> + <li><code>Proxy-Authenticate</code></li> + <li><code>Proxy-Authorization</code></li> + <li><code>TE</code></li> + <li><code>Trailers</code></li> + <li><code>Transfer-Encoding</code></li> + <li><code>Upgrade</code></li> + </ul> + + <p>La directive <code class="directive">CacheIgnoreHeaders</code> permet de + spécifier quels en-têtes HTTP ne doivent pas être stockés dans le + cache. Par exemple, il peut s'avérer pertinent dans certains cas de + ne pas stocker les cookies dans le cache.</p> + + <p>La directive <code class="directive">CacheIgnoreHeaders</code> accepte + une liste d'en-têtes HTTP séparés par des espaces, qui ne doivent + pas être stockés dans le cache. Si les en-têtes hop-by-hop sont les + seuls à ne pas devoir être stockés dans le cache (le comportement + compatible RFC 2616), la directive + <code class="directive">CacheIgnoreHeaders</code> peut être définie à + <code>None</code>.</p> + + <div class="example"><h3>Exemple 1</h3><pre class="prettyprint lang-config">CacheIgnoreHeaders Set-Cookie</pre> +</div> + + <div class="example"><h3>Exemple 2</h3><pre class="prettyprint lang-config">CacheIgnoreHeaders None</pre> +</div> + + <div class="warning"><h3>Avertissement :</h3> + Si des en-têtes nécessaires à la bonne gestion du cache, comme + <code>Expires</code>, ne sont pas stockés suite à la définition + d'une directive <code class="directive">CacheIgnoreHeaders</code>, le + comportement de mod_cache sera imprévisible. + </div> + +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="cacheignorenolastmod" id="cacheignorenolastmod">Directive</a> <a name="CacheIgnoreNoLastMod" id="CacheIgnoreNoLastMod">CacheIgnoreNoLastMod</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Ignore le fait qu'une réponse ne possède pas d'en-tête Last +Modified.</td></tr> +<tr><th><a href="directive-dict.html#Syntax">Syntaxe:</a></th><td><code>CacheIgnoreNoLastMod On|Off</code></td></tr> +<tr><th><a href="directive-dict.html#Default">Défaut:</a></th><td><code>CacheIgnoreNoLastMod Off</code></td></tr> +<tr><th><a href="directive-dict.html#Context">Contexte:</a></th><td>configuration globale, serveur virtuel, répertoire, .htaccess</td></tr> +<tr><th><a href="directive-dict.html#Status">Statut:</a></th><td>Extension</td></tr> +<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_cache</td></tr> +</table> + <p>Normalement, les documents qui ne possèdent pas de date de + dernière modification ne sont pas mis en cache. Dans certaines + circonstances, la date de dernière modification est supprimée (au + cours des traitements liés à <code class="module"><a href="../mod/mod_include.html">mod_include</a></code> par + exemple), ou n'existe tout simplement pas. La directive + <code class="directive">CacheIgnoreNoLastMod</code> permet de spécifier si + les documents ne possèdant pas de date de dernière modification doivent être + mis en cache, même sans date de dernière modification. Si le document ne + possède ni date d'expiration, ni date de dernière modification, la valeur + spécifiée par la directive <code class="directive"><a href="#cachedefaultexpire">CacheDefaultExpire</a></code> servira à générer une date + d'expiration. + </p> + + <pre class="prettyprint lang-config">CacheIgnoreNoLastMod On</pre> + + +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="cacheignorequerystring" id="cacheignorequerystring">Directive</a> <a name="CacheIgnoreQueryString" id="CacheIgnoreQueryString">CacheIgnoreQueryString</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Ignore la chaîne de paramètres lors de la mise en +cache</td></tr> +<tr><th><a href="directive-dict.html#Syntax">Syntaxe:</a></th><td><code>CacheIgnoreQueryString On|Off</code></td></tr> +<tr><th><a href="directive-dict.html#Default">Défaut:</a></th><td><code>CacheIgnoreQueryString Off</code></td></tr> +<tr><th><a href="directive-dict.html#Context">Contexte:</a></th><td>configuration globale, serveur virtuel</td></tr> +<tr><th><a href="directive-dict.html#Status">Statut:</a></th><td>Extension</td></tr> +<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_cache</td></tr> +</table> + <p>Normalement, les requêtes comportant une chaîne de paramètres + sont mises en cache séparément si leurs chaînes de paramètres + diffèrent. + En accord avec la RFC 2616/13.9, cette mise en cache n'est effectuée + séparément que si une date d'expiration est spécifiée. La directive + <code class="directive">CacheIgnoreQueryString</code> permet la mise en + cache de requêtes même si aucune date d'expiration est spécifiée, et + de renvoyer une réponse depuis la cache même si les chaînes de + paramètres diffèrent. Du point de vue du cache, la requête est + traitée comme si elle ne possèdait pas de chaîne de paramètres + lorsque cette directive est activée.</p> + + <pre class="prettyprint lang-config">CacheIgnoreQueryString On</pre> + + + +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="cacheignoreurlsessionidentifiers" id="cacheignoreurlsessionidentifiers">Directive</a> <a name="CacheIgnoreURLSessionIdentifiers" id="CacheIgnoreURLSessionIdentifiers">CacheIgnoreURLSessionIdentifiers</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Ignore les identifiants de session définis encodés dans +l'URL lors de la mise en cache +</td></tr> +<tr><th><a href="directive-dict.html#Syntax">Syntaxe:</a></th><td><code>CacheIgnoreURLSessionIdentifiers <var>identifiant</var> +[<var>identifiant</var>] ...</code></td></tr> +<tr><th><a href="directive-dict.html#Default">Défaut:</a></th><td><code>CacheIgnoreURLSessionIdentifiers None</code></td></tr> +<tr><th><a href="directive-dict.html#Context">Contexte:</a></th><td>configuration globale, serveur virtuel</td></tr> +<tr><th><a href="directive-dict.html#Status">Statut:</a></th><td>Extension</td></tr> +<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_cache</td></tr> +</table> + <p>Certaines applications encodent l'identifiant de session dans + l'URL comme dans l'exemple suivant : + </p> + <ul> + <li><code>/une-application/image.gif;jsessionid=123456789</code></li> + <li><code>/une-application/image.gif?PHPSESSIONID=12345678</code></li> + </ul> + <p>Ceci implique la mise en cache des ressources séparément pour + chaque session, ce qui n'est en général pas souhaité. La directive + <code class="directive">CacheIgnoreURLSessionIdentifiers</code> permet de + définir une liste d'identifiants qui seront supprimés de la clé + utilisée pour identifier une entité dans le cache, de façon à ce que + les ressources ne soient pas stockées séparément pour chaque + session. + </p> + <p><code>CacheIgnoreURLSessionIdentifiers None</code> vide la liste + des identifiants ignorés. Autrement, chaque identifiant spécifié est + ajouté à la liste.</p> + + <div class="example"><h3>Exemple 1</h3><pre class="prettyprint lang-config">CacheIgnoreURLSessionIdentifiers jsessionid</pre> +</div> + + <div class="example"><h3>Exemple 2</h3><pre class="prettyprint lang-config">CacheIgnoreURLSessionIdentifiers None</pre> +</div> + + +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="cachekeybaseurl" id="cachekeybaseurl">Directive</a> <a name="CacheKeyBaseURL" id="CacheKeyBaseURL">CacheKeyBaseURL</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Remplace l'URL de base des clés du cache mandatées en +inverse</td></tr> +<tr><th><a href="directive-dict.html#Syntax">Syntaxe:</a></th><td><code>CacheKeyBaseURL <var>URL</var></code></td></tr> +<tr><th><a href="directive-dict.html#Context">Contexte:</a></th><td>configuration globale, serveur virtuel</td></tr> +<tr><th><a href="directive-dict.html#Status">Statut:</a></th><td>Extension</td></tr> +<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_cache</td></tr> +<tr><th><a href="directive-dict.html#Compatibility">Compatibilité:</a></th><td>Disponible depuis la version 2.3.9 d'Apache</td></tr> +</table> + <p>Lorsque la directive <code class="directive">CacheKeyBaseURL</code> est utilisée, + l'URL spécifiée sera utilisée comme URL de base pour calculer l'URL des clés + du cache dans la configuration du mandataire inverse. Par défaut, c'est le + protocole/nom d'hôte/port du serveur virtuel courant qui sera utilisé pour + construire la clé de cache. Dans le cas d'un cluster de machines, si toutes + les entrées du cache doivent posséder la même clé, cette directive permet de + spécifier une nouvelle URL de base.</p> + + <pre class="prettyprint lang-config"># Remplace l'URL de base de la clé de cache. +CacheKeyBaseURL "http://www.example.com/"</pre> + + + <div class="warning">Prenez garde en définissant cette directive. Si + deux serveurs virtuels distincts possèdent accidentellement la même + URL de base, les entrées en provenance d'un serveur virtuel seront + servies par l'autre.</div> + + +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="cachelastmodifiedfactor" id="cachelastmodifiedfactor">Directive</a> <a name="CacheLastModifiedFactor" id="CacheLastModifiedFactor">CacheLastModifiedFactor</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Le facteur utilisé pour générer une date d'expiration en +fonction de la date de dernière modification.</td></tr> +<tr><th><a href="directive-dict.html#Syntax">Syntaxe:</a></th><td><code>CacheLastModifiedFactor <var>flottant</var></code></td></tr> +<tr><th><a href="directive-dict.html#Default">Défaut:</a></th><td><code>CacheLastModifiedFactor 0.1</code></td></tr> +<tr><th><a href="directive-dict.html#Context">Contexte:</a></th><td>configuration globale, serveur virtuel, répertoire, .htaccess</td></tr> +<tr><th><a href="directive-dict.html#Status">Statut:</a></th><td>Extension</td></tr> +<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_cache</td></tr> +</table> + <p>Si un document ne possède pas de date d'expiration, elle peut + être calculée en fonction de la date de dernière modification, si + elle existe. La directive + <code class="directive">CacheLastModifiedFactor</code> permet de spécifier + un <var>facteur</var> à utiliser pour la génération de cette date + d'expiration au sein de la formule suivante : + + <code>délai-expiration = durée-depuis-date-dernière-modification * + <var>facteur</var> + date-expiration = date-courante + délai-expiration</code> + + Par exemple, si la dernière modification du document date de 10 + heures, et si <var>facteur</var> a pour valeur 0.1, le délai + d'expiration sera de 10*0.1 = 1 heure. Si l'heure courante est + 3:00pm, la date d'expiration calculée sera 3:00pm + 1 heure = + 4:00pm. + + Si le délai d'expiration est supérieur à celui spécifié par la directive + <code class="directive"><a href="#cachemaxexpire">CacheMaxExpire</a></code>, c'est ce dernier + qui l'emporte.</p> + + <pre class="prettyprint lang-config">CacheLastModifiedFactor 0.5</pre> + + +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="cachelock" id="cachelock">Directive</a> <a name="CacheLock" id="CacheLock">CacheLock</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Active la protection contre les tempêtes de requêtes.</td></tr> +<tr><th><a href="directive-dict.html#Syntax">Syntaxe:</a></th><td><code>CacheLock <var>on|off</var></code></td></tr> +<tr><th><a href="directive-dict.html#Default">Défaut:</a></th><td><code>CacheLock off</code></td></tr> +<tr><th><a href="directive-dict.html#Context">Contexte:</a></th><td>configuration globale, serveur virtuel</td></tr> +<tr><th><a href="directive-dict.html#Status">Statut:</a></th><td>Extension</td></tr> +<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_cache</td></tr> +<tr><th><a href="directive-dict.html#Compatibility">Compatibilité:</a></th><td>Disponible depuis la version 2.2.15 d'Apache</td></tr> +</table> + <p>La directive <code class="directive">CacheLock</code> active la protection + contre les tempêtes de requêtes pour l'espace d'adressage donné.</p> + + <p>La configuration minimale pour activer le verrouillage contre les + tempêtes de requêtes dans le répertoire temp par défaut du système est + la suivante :</p> + + <pre class="prettyprint lang-config"># Active le verrouillage du cache +CacheLock on</pre> + + + +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="cachelockmaxage" id="cachelockmaxage">Directive</a> <a name="CacheLockMaxAge" id="CacheLockMaxAge">CacheLockMaxAge</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Définit la durée de vie maximale d'un verrou de cache.</td></tr> +<tr><th><a href="directive-dict.html#Syntax">Syntaxe:</a></th><td><code>CacheLockMaxAge <var>entier</var></code></td></tr> +<tr><th><a href="directive-dict.html#Default">Défaut:</a></th><td><code>CacheLockMaxAge 5</code></td></tr> +<tr><th><a href="directive-dict.html#Context">Contexte:</a></th><td>configuration globale, serveur virtuel</td></tr> +<tr><th><a href="directive-dict.html#Status">Statut:</a></th><td>Extension</td></tr> +<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_cache</td></tr> +</table> + <p>La directive <code class="directive">CacheLockMaxAge</code> permet de + spécifier la durée de vie maximale d'un verrou de cache.</p> + + <p>Un verrou plus ancien que cette valeur exprimée en secondes sera + ignoré, et la prochaine requête entrante sera alors en mesure de + recréer le verrou. Ce mécanisme permet d'éviter les mises à jour trop + longues initiées par des clients lents.</p> + + +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="cachelockpath" id="cachelockpath">Directive</a> <a name="CacheLockPath" id="CacheLockPath">CacheLockPath</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Définit le répertoire des verrous.</td></tr> +<tr><th><a href="directive-dict.html#Syntax">Syntaxe:</a></th><td><code>CacheLockPath <var>répertoire</var></code></td></tr> +<tr><th><a href="directive-dict.html#Default">Défaut:</a></th><td><code>CacheLockPath /tmp/mod_cache-lock</code></td></tr> +<tr><th><a href="directive-dict.html#Context">Contexte:</a></th><td>configuration globale, serveur virtuel</td></tr> +<tr><th><a href="directive-dict.html#Status">Statut:</a></th><td>Extension</td></tr> +<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_cache</td></tr> +</table> + <p>La directive <code class="directive">CacheLockPath</code> permet de + spécifier le répertoire dans lequel les verrous sont créés. Par + défaut, c'est le répertoire temporaire du système qui est utilisé. Les + verrous sont des fichiers vides qui n'existent que pour les URLs + périmées en cours de mise à jour, et consomment donc bien moins de + ressources que le traditionnel cache sur disque.</p> + + +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="cachemaxexpire" id="cachemaxexpire">Directive</a> <a name="CacheMaxExpire" id="CacheMaxExpire">CacheMaxExpire</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>La durée maximale en secondes de mise en cache d'un +document</td></tr> +<tr><th><a href="directive-dict.html#Syntax">Syntaxe:</a></th><td><code>CacheMaxExpire <var>secondes</var></code></td></tr> +<tr><th><a href="directive-dict.html#Default">Défaut:</a></th><td><code>CacheMaxExpire 86400 (une journée)</code></td></tr> +<tr><th><a href="directive-dict.html#Context">Contexte:</a></th><td>configuration globale, serveur virtuel, répertoire, .htaccess</td></tr> +<tr><th><a href="directive-dict.html#Status">Statut:</a></th><td>Extension</td></tr> +<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_cache</td></tr> +</table> + <p>La directive <code class="directive">CacheMaxExpire</code> permet de + spécifier le nombre maximum de secondes pendant lequel les documents + HTTP suceptibles d'être mis en cache seront conservés sans vérifier + leur contenu sur le serveur d'origine. Ce nombre de secondes + correspond donc à la durée maximale pendant laquelle un document ne + sera pas à jour. L'utilisation de cette valeur maximale est forcée, + même si le document possède une date d'expiration.</p> + + <pre class="prettyprint lang-config">CacheMaxExpire 604800</pre> + + + +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="cacheminexpire" id="cacheminexpire">Directive</a> <a name="CacheMinExpire" id="CacheMinExpire">CacheMinExpire</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>La durée minimale en secondes de mise en cache d'un +document</td></tr> +<tr><th><a href="directive-dict.html#Syntax">Syntaxe:</a></th><td><code>CacheMinExpire <var>secondes</var></code></td></tr> +<tr><th><a href="directive-dict.html#Default">Défaut:</a></th><td><code>CacheMinExpire 0</code></td></tr> +<tr><th><a href="directive-dict.html#Context">Contexte:</a></th><td>configuration globale, serveur virtuel, répertoire, .htaccess</td></tr> +<tr><th><a href="directive-dict.html#Status">Statut:</a></th><td>Extension</td></tr> +<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_cache</td></tr> +</table> + <p>La directive <code class="directive">CacheMinExpire</code> permet de + spécifier le nombre minimum de secondes pendant lequel les documents + HTTP susceptibles d'être mis en cache seront conservés sans vérifier + leur contenu sur le serveur d'origine. Elle n'est prise en compte + que dans le cas où le document ne possède aucune date d'expiration + valide.</p> + + <pre class="prettyprint lang-config">CacheMinExpire 3600</pre> + + +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="cachequickhandler" id="cachequickhandler">Directive</a> <a name="CacheQuickHandler" id="CacheQuickHandler">CacheQuickHandler</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Exécute le cache à partir d'un gestionnaire rapide.</td></tr> +<tr><th><a href="directive-dict.html#Syntax">Syntaxe:</a></th><td><code>CacheQuickHandler <var>on|off</var></code></td></tr> +<tr><th><a href="directive-dict.html#Default">Défaut:</a></th><td><code>CacheQuickHandler on</code></td></tr> +<tr><th><a href="directive-dict.html#Context">Contexte:</a></th><td>configuration globale, serveur virtuel</td></tr> +<tr><th><a href="directive-dict.html#Status">Statut:</a></th><td>Extension</td></tr> +<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_cache</td></tr> +<tr><th><a href="directive-dict.html#Compatibility">Compatibilité:</a></th><td>Disponible à partir de la version 2.3.3 du serveur HTTP + Apache</td></tr> +</table> + <p>La directive <code class="directive">CacheQuickHandler</code> permet de contrôler + la phase au cours de laquelle la mise en cache est effectuée.</p> + + <p>Avec la configuration par défaut, le cache agit au cours de la + phase du gestionnaire rapide. Cette phase court-circuite la majorité + des traitements du serveur, et constitue le mode d'opération le plus + performant pour un serveur typique. Le cache + <strong>s'incruste</strong> devant le serveur, et la majorité des + traitements du serveur est court-circuitée.</p> + + <p>Lorsque cette directive est définie à off, le cache agit comme un + gestionnaire normal, et est concerné par toutes les phases de + traitement d'une requête. Bien que ce mode soit moins performant que + le mode par défaut, il permet d'utiliser le cache dans les cas où un + traitement complet de la requête est nécessaire, comme par exemple + lorsque le contenu est soumis à autorisation.</p> + + <pre class="prettyprint lang-config"># Exécute le cache comme un gestionnaire normal +CacheQuickHandler off</pre> + + + <p>Lorsque le gestionnaire rapide est désactivé, l'administrateur a + aussi la possibilité de choisir avec précision le point de la chaîne + de filtrage où la mise en cache sera effectuée, en utilisant le + filtre <strong>CACHE</strong>.</p> + + <pre class="prettyprint lang-config"># Mise en cache du contenu avant l'intervention de mod_include et + # mod_deflate +CacheQuickHandler off +AddOutputFilterByType CACHE;INCLUDES;DEFLATE text/html</pre> + + + <p>Si le filtre CACHE est spécifié plusieurs fois, c'est la dernière + instance qui sera prise en compte.</p> + + +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="cachestaleonerror" id="cachestaleonerror">Directive</a> <a name="CacheStaleOnError" id="CacheStaleOnError">CacheStaleOnError</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Sert du contenu non à jour à la place de réponses 5xx.</td></tr> +<tr><th><a href="directive-dict.html#Syntax">Syntaxe:</a></th><td><code>CacheStaleOnError <var>on|off</var></code></td></tr> +<tr><th><a href="directive-dict.html#Default">Défaut:</a></th><td><code>CacheStaleOnError on</code></td></tr> +<tr><th><a href="directive-dict.html#Context">Contexte:</a></th><td>configuration globale, serveur virtuel, répertoire, .htaccess</td></tr> +<tr><th><a href="directive-dict.html#Status">Statut:</a></th><td>Extension</td></tr> +<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_cache</td></tr> +<tr><th><a href="directive-dict.html#Compatibility">Compatibilité:</a></th><td>Disponible depuis la version 2.3.9 d'Apache</td></tr> +</table> + <p>Lorsque la directive <code class="directive">CacheStaleOnError</code> est définie à + on, et si des données non mises à jour sont disponibles dans le cache, ce + dernier renverra ces données, plutôt qu'une éventuelle réponse 5xx en + provenance du serveur d'arrière-plan. Alors que l'en-tête Cache-Control envoyé + par les clients sera respecté, et que les clients recevront donc dans ce cas + la réponse 5xx brute à leur requête, cette réponse 5xx renvoyée au client + n'invalidera pas le contenu dans le cache.</p> + + <pre class="prettyprint lang-config"># Sert des données non mises à jour en cas d'erreur. +CacheStaleOnError on</pre> + + + +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="cachestoreexpired" id="cachestoreexpired">Directive</a> <a name="CacheStoreExpired" id="CacheStoreExpired">CacheStoreExpired</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Tente de mettre en cache les réponses que le serveur +considère comme arrivées à expiration</td></tr> +<tr><th><a href="directive-dict.html#Syntax">Syntaxe:</a></th><td><code>CacheStoreExpired On|Off</code></td></tr> +<tr><th><a href="directive-dict.html#Default">Défaut:</a></th><td><code>CacheStoreExpired Off</code></td></tr> +<tr><th><a href="directive-dict.html#Context">Contexte:</a></th><td>configuration globale, serveur virtuel, répertoire, .htaccess</td></tr> +<tr><th><a href="directive-dict.html#Status">Statut:</a></th><td>Extension</td></tr> +<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_cache</td></tr> +</table> + <p>Depuis la version 2.2.4, les réponses qui sont arrivées à + expiration ne sont pas stockées dans le cache. La directive + <code class="directive">CacheStoreExpired</code> permet de modifier ce + comportement. Avec <code class="directive">CacheStoreExpired</code> On, le + serveur tente de mettre en cache la ressource si elle est périmée. + Les requêtes suivantes vont déclencher une requête si-modifié-depuis + de la part du serveur d'origine, et la réponse sera renvoyée à + partir du cache si la ressource d'arrière-plan n'a pas été modifiée.</p> + + <pre class="prettyprint lang-config">CacheStoreExpired On</pre> + + + +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="cachestorenostore" id="cachestorenostore">Directive</a> <a name="CacheStoreNoStore" id="CacheStoreNoStore">CacheStoreNoStore</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Tente de mettre en cache les requêtes ou réponses dont +l'entête Cache-Control: a pour valeur no-store.</td></tr> +<tr><th><a href="directive-dict.html#Syntax">Syntaxe:</a></th><td><code>CacheStoreNoStore On|Off</code></td></tr> +<tr><th><a href="directive-dict.html#Default">Défaut:</a></th><td><code>CacheStoreNoStore Off</code></td></tr> +<tr><th><a href="directive-dict.html#Context">Contexte:</a></th><td>configuration globale, serveur virtuel, répertoire, .htaccess</td></tr> +<tr><th><a href="directive-dict.html#Status">Statut:</a></th><td>Extension</td></tr> +<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_cache</td></tr> +</table> + <p>Normalement, les requêtes ou réponses dont l'en-tête + <code>Cache-Control: no-store</code> ne sont pas stockées dans le + cache. La directive <code class="directive">CacheStoreNoStore</code> permet + de modifier ce comportement. Si + <code class="directive">CacheStoreNoStore</code> est définie à On, le + serveur tente de mettre la ressource en cache même si elle contient + des en-têtes ayant pour valeur no-store. Les ressources + nécessitant une autorisation ne sont <em>jamais</em> mises en + cache.</p> + + + <pre class="prettyprint lang-config">CacheStoreNoStore On</pre> + + + + <div class="warning"><h3>Avertissement :</h3> + Selon la RFC 2616, la valeur d'en-tête no-store est censée + "prévenir la suppression ou la rétention par inadvertance + d'informations sensibles (par exemple, sur des bandes de + sauvegarde)". Autrement dit, l'activation de la directive + <code class="directive">CacheStoreNoCache</code> pourrait provoquer le + stockage d'informations sensibles dans le cache. Vous avez donc + été prévenus. + </div> + +<h3>Voir aussi</h3> +<ul> +<li><code class="directive"><a href="#cacheignorecachecontrol">CacheIgnoreCacheControl</a></code></li> +<li><code class="directive"><a href="#cachestoreprivate">CacheStorePrivate</a></code></li> +</ul> +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="cachestoreprivate" id="cachestoreprivate">Directive</a> <a name="CacheStorePrivate" id="CacheStorePrivate">CacheStorePrivate</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Tente de mettre en cache des réponses que le serveur a +marquées comme privées</td></tr> +<tr><th><a href="directive-dict.html#Syntax">Syntaxe:</a></th><td><code>CacheStorePrivate On|Off</code></td></tr> +<tr><th><a href="directive-dict.html#Default">Défaut:</a></th><td><code>CacheStorePrivate Off</code></td></tr> +<tr><th><a href="directive-dict.html#Context">Contexte:</a></th><td>configuration globale, serveur virtuel, répertoire, .htaccess</td></tr> +<tr><th><a href="directive-dict.html#Status">Statut:</a></th><td>Extension</td></tr> +<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_cache</td></tr> +</table> + <p>Normalement, les réponse comportant un en-tête <code>Cache-Control: + private</code> ne seront pas stockées dans le cache. La directive + <code class="directive">CacheStorePrivate</code> permet de modifier ce comportement. + Si <code class="directive">CacheStorePrivate</code> est définie à On, le serveur + tentera de mettre la ressource en cache, même si elle + contient des en-têtes ayant pour valeur private. Les ressources + nécessitant une autorisation ne sont <em>jamais</em> mises en + cache.</p> + + + <pre class="prettyprint lang-config">CacheStorePrivate On</pre> + + + + <div class="warning"><h3>Avertissement :</h3> + Cette directive autorise la mise en cache même si le serveur + indique que la ressource ne doit pas être mise en cache. Elle + n'est de ce fait appropriée que dans le cas d'un cache + 'privé'. + </div> + +<h3>Voir aussi</h3> +<ul> +<li><code class="directive"><a href="#cacheignorecachecontrol">CacheIgnoreCacheControl</a></code></li> +<li><code class="directive"><a href="#cachestorenostore">CacheStoreNoStore</a></code></li> +</ul> +</div> +</div> +<div class="bottomlang"> +<p><span>Langues Disponibles: </span><a href="../en/mod/mod_cache.html" hreflang="en" rel="alternate" title="English"> en </a> | +<a href="../fr/mod/mod_cache.html" title="Français"> fr </a> | +<a href="../ja/mod/mod_cache.html" hreflang="ja" rel="alternate" title="Japanese"> ja </a> | +<a href="../ko/mod/mod_cache.html" hreflang="ko" rel="alternate" title="Korean"> ko </a></p> +</div><div class="top"><a href="#page-header"><img src="../images/up.gif" alt="top" /></a></div><div class="section"><h2><a id="comments_section" name="comments_section">Commentaires</a></h2><div class="warning"><strong>Notice:</strong><br />This is not a Q&A section. 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\ No newline at end of file diff --git a/docs/manual/mod/mod_cache.html.ja.utf8 b/docs/manual/mod/mod_cache.html.ja.utf8 new file mode 100644 index 0000000..ad53ac0 --- /dev/null +++ b/docs/manual/mod/mod_cache.html.ja.utf8 @@ -0,0 +1,680 @@ +<?xml version="1.0" encoding="UTF-8"?> +<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> +<html xmlns="http://www.w3.org/1999/xhtml" lang="ja" xml:lang="ja"><head> +<meta content="text/html; charset=UTF-8" http-equiv="Content-Type" /> +<!-- + XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX + This file is generated from xml source: DO NOT EDIT + XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX + --> +<title>mod_cache - Apache HTTP サームãƒãƒ¼ã‚¸ãƒ§ãƒ³ 2.4</title> +<link href="../style/css/manual.css" rel="stylesheet" media="all" type="text/css" title="Main stylesheet" /> +<link href="../style/css/manual-loose-100pc.css" rel="alternate stylesheet" media="all" type="text/css" title="No Sidebar - Default font size" /> +<link href="../style/css/manual-print.css" rel="stylesheet" media="print" type="text/css" /><link rel="stylesheet" type="text/css" href="../style/css/prettify.css" /> +<script src="../style/scripts/prettify.min.js" type="text/javascript"> +</script> + +<link href="../images/favicon.ico" rel="shortcut icon" /></head> +<body> +<div id="page-header"> +<p class="menu"><a href="../mod/">モジュール</a> | <a href="../mod/directives.html">ディレクティブ</a> | <a href="http://wiki.apache.org/httpd/FAQ">FAQ</a> | <a href="../glossary.html">用語</a> | <a href="../sitemap.html">サイトマップ</a></p> +<p class="apache">Apache HTTP サームãƒãƒ¼ã‚¸ãƒ§ãƒ³ 2.4</p> +<img alt="" src="../images/feather.png" /></div> +<div class="up"><a href="./"><img title="<-" alt="<-" src="../images/left.gif" /></a></div> +<div id="path"> +<a href="http://www.apache.org/">Apache</a> > <a href="http://httpd.apache.org/">HTTP サーãƒ</a> > <a href="http://httpd.apache.org/docs/">ドã‚ュメンテーション</a> > <a href="../">ãƒãƒ¼ã‚¸ãƒ§ãƒ³ 2.4</a> > <a href="./">モジュール</a></div> +<div id="page-content"> +<div id="preamble"><h1>Apache モジュール mod_cache</h1> +<div class="toplang"> +<p><span>翻訳済ã¿è¨€èªž: </span><a href="../en/mod/mod_cache.html" hreflang="en" rel="alternate" title="English"> en </a> | +<a href="../fr/mod/mod_cache.html" hreflang="fr" rel="alternate" title="Français"> fr </a> | +<a href="../ja/mod/mod_cache.html" title="Japanese"> ja </a> | +<a href="../ko/mod/mod_cache.html" hreflang="ko" rel="alternate" title="Korean"> ko </a></p> +</div> +<div class="outofdate">ã“ã®æ—¥æœ¬èªžè¨³ã¯ã™ã§ã«å¤ããªã£ã¦ã„ã‚‹ + å¯èƒ½æ€§ãŒã‚ã‚Šã¾ã™ã€‚ + 最近更新ã•ã‚ŒãŸå†…容を見るã«ã¯è‹±èªžç‰ˆã‚’ã”覧下ã•ã„。 + </div> +<table class="module"><tr><th><a href="module-dict.html#Description">説明:</a></th><td>URI ã‚’ã‚ーã«ã—ãŸã‚³ãƒ³ãƒ†ãƒ³ãƒ„ã®ã‚ャッシュ</td></tr> +<tr><th><a href="module-dict.html#Status">ステータス:</a></th><td>Extension</td></tr> +<tr><th><a href="module-dict.html#ModuleIdentifier">モジュールè˜åˆ¥å:</a></th><td>cache_module</td></tr> +<tr><th><a href="module-dict.html#SourceFile">ソースファイル:</a></th><td>mod_cache.c</td></tr></table> +<h3>概è¦</h3> + + <div class="warning">ã“ã®ãƒ¢ã‚¸ãƒ¥ãƒ¼ãƒ«ã¯ <code class="directive"><a href="../mod/mod_authz_host.html#allow">Allow</a></code> ã‚„ <code class="directive"><a href="../mod/mod_authz_host.html#deny">Deny</a></code> ディレクティブを無視ã—ã¾ã™ã®ã§ã€ + 注æ„ã—ã¦ä½¿ã£ã¦ä¸‹ã•ã„。クライアントã®ãƒ›ã‚¹ãƒˆåã€ã‚¢ãƒ‰ãƒ¬ã‚¹ã‚„環境変数を使ã£ã¦ + アクセスを制é™ã—ãŸã„コンテンツã«å¯¾ã—ã¦ã¯ã‚ャッシュ機能を有効ã«ã™ã‚‹ã¹ãã§ã¯ã‚ã‚Šã¾ã›ã‚“。 + </div> + + <p><code class="module"><a href="../mod/mod_cache.html">mod_cache</a></code> ã¯ãƒãƒ¼ã‚«ãƒ«ã®ã‚³ãƒ³ãƒ†ãƒ³ãƒ„やプãƒã‚ã‚·ã•ã‚ŒãŸ + コンテンツをã‚ャッシュã™ã‚‹ãŸã‚ã«ä½¿ã‚れる <a href="http://www.ietf.org/rfc/rfc2616.txt">RFC 2616</a> æº–æ‹ ã® + HTTP コンテンツã‚ャッシュを実装ã—ã¦ã„ã¾ã™ã€‚<code class="module"><a href="../mod/mod_cache.html">mod_cache</a></code> + ã®å‹•ä½œã«ã¯ã‚¹ãƒˆãƒ¬ãƒ¼ã‚¸ã‚’管ç†ã™ã‚‹ãƒ¢ã‚¸ãƒ¥ãƒ¼ãƒ«ãŒå¿…è¦ã§ã™ã€‚標準 + Apache é…布ã«ã¯äºŒã¤ã‚¹ãƒˆãƒ¬ãƒ¼ã‚¸ç®¡ç†ãƒ¢ã‚¸ãƒ¥ãƒ¼ãƒ«ãŒå«ã¾ã‚Œã¦ã„ã¾ã™:</p> + + <dl> + <dt><code class="module"><a href="../mod/mod_cache_disk.html">mod_cache_disk</a></code></dt> + <dd>ディスクを使用ã—ãŸã‚¹ãƒˆãƒ¬ãƒ¼ã‚¸ç®¡ç†æ©Ÿæ§‹ã‚’実装ã—ã¦ã„ã¾ã™ã€‚</dd> + + <dt><code class="module"><a href="../mod/mod_mem_cache.html">mod_mem_cache</a></code></dt> + <dd>メモリを使用ã—ãŸã‚¹ãƒˆãƒ¬ãƒ¼ã‚¸ç®¡ç†æ©Ÿæ§‹ã‚’実装ã—ã¦ã„ã¾ã™ã€‚ + <code class="module"><a href="../mod/mod_mem_cache.html">mod_mem_cache</a></code> ã¯æ¬¡ã®äºŒã¤ã®ãƒ¢ãƒ¼ãƒ‰ã®ã©ã¡ã‚‰ã‹ã§å‹•ä½œã™ã‚‹ + よã†ã«è¨å®šã§ãã¾ã™: オープンã•ã‚Œã¦ã„るファイル記述åã‚’ã‚ャッシュã™ã‚‹ãƒ¢ãƒ¼ãƒ‰ã‹ã€ + ヒープ上ã§ã®ã‚ªãƒ–ジェクトã®è‡ªä½“ã‚’ã‚ャッシュをã™ã‚‹ãƒ¢ãƒ¼ãƒ‰ã§ã™ã€‚ + <code class="module"><a href="../mod/mod_mem_cache.html">mod_mem_cache</a></code> ã¯ãƒãƒ¼ã‚«ãƒ«ã§ç”Ÿæˆã•ã‚Œã‚‹ã‚³ãƒ³ãƒ†ãƒ³ãƒ„や〠+ <code class="module"><a href="../mod/mod_proxy.html">mod_proxy</a></code> ㌠+ <code class="directive"><a href="../mod/mod_proxy.html#proxypass">ProxyPass</a></code> を使ã£ã¦è¨å®šã•ã‚Œã¦ã„ã‚‹ + ã¨ãã® (ã¤ã¾ã‚Š<dfn>リãƒãƒ¼ã‚¹ãƒ—ãƒã‚ã‚·</dfn> ã§ã®) ãƒãƒƒã‚¯ã‚¨ãƒ³ãƒ‰ã‚µãƒ¼ãƒã® + コンテンツをã‚ャッシュã™ã‚‹ã®ã«ä½¿ãˆã¾ã™ã€‚</dd> + </dl> + + <p>コンテンツã®ã‚ャッシュã¸ã®ä¿å˜ã¨å–得㯠URI ã«åŸºã¥ã„ãŸã‚ーãŒä½¿ã‚ã‚Œã¾ã™ã€‚ + アクセスä¿è·ã®ã‹ã‘られã¦ã„るコンテンツã¯ã‚ャッシュã•ã‚Œã¾ã›ã‚“。</p> + <p>より詳細ãªè§£èª¬ã‚„例ã«ã¤ã„ã¦ã¯<a href="../caching.html">ã‚ャッシュ機能</a> + ã‚’å‚ç…§ã—ã¦ãã ã•ã„。</p> +</div> +<div id="quickview"><a href="https://www.apache.org/foundation/contributing.html" class="badge"><img src="https://www.apache.org/images/SupportApache-small.png" alt="Support Apache!" /></a><h3>トピック</h3> +<ul id="topics"> +<li><img alt="" src="../images/down.gif" /> <a href="#related">関連モジュールã¨ãƒ‡ã‚£ãƒ¬ã‚¯ãƒ†ã‚£ãƒ–</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#sampleconf">サンプルè¨å®š</a></li> +</ul><h3 class="directives">ディレクティブ</h3> +<ul id="toc"> +<li><img alt="" src="../images/down.gif" /> <a href="#cachedefaultexpire">CacheDefaultExpire</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cachedetailheader">CacheDetailHeader</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cachedisable">CacheDisable</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cacheenable">CacheEnable</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cacheheader">CacheHeader</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cacheignorecachecontrol">CacheIgnoreCacheControl</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cacheignoreheaders">CacheIgnoreHeaders</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cacheignorenolastmod">CacheIgnoreNoLastMod</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cacheignorequerystring">CacheIgnoreQueryString</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cacheignoreurlsessionidentifiers">CacheIgnoreURLSessionIdentifiers</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cachekeybaseurl">CacheKeyBaseURL</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cachelastmodifiedfactor">CacheLastModifiedFactor</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cachelock">CacheLock</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cachelockmaxage">CacheLockMaxAge</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cachelockpath">CacheLockPath</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cachemaxexpire">CacheMaxExpire</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cacheminexpire">CacheMinExpire</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cachequickhandler">CacheQuickHandler</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cachestaleonerror">CacheStaleOnError</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cachestoreexpired">CacheStoreExpired</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cachestorenostore">CacheStoreNoStore</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cachestoreprivate">CacheStorePrivate</a></li> +</ul> +<h3>Bugfix checklist</h3><ul class="seealso"><li><a href="https://www.apache.org/dist/httpd/CHANGES_2.4">httpd changelog</a></li><li><a href="https://bz.apache.org/bugzilla/buglist.cgi?bug_status=__open__&list_id=144532&product=Apache%20httpd-2&query_format=specific&order=changeddate%20DESC%2Cpriority%2Cbug_severity&component=mod_cache">Known issues</a></li><li><a href="https://bz.apache.org/bugzilla/enter_bug.cgi?product=Apache%20httpd-2&component=mod_cache">Report a bug</a></li></ul><h3>å‚ç…§</h3> +<ul class="seealso"> +<li><a href="../caching.html">ã‚ャッシュ機能</a></li> +<li><a href="#comments_section">コメント</a></li></ul></div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="section"> +<h2><a name="related" id="related">関連モジュールã¨ãƒ‡ã‚£ãƒ¬ã‚¯ãƒ†ã‚£ãƒ–</a></h2> + <table class="related"><tr><th>関連モジュール</th><th>関連ディレクティブ</th></tr><tr><td><ul><li><code class="module"><a href="../mod/mod_cache_disk.html">mod_cache_disk</a></code></li><li><code class="module"><a href="../mod/mod_mem_cache.html">mod_mem_cache</a></code></li></ul></td><td><ul><li><code class="directive"><a href="../mod/mod_cache_disk.html#cacheroot">CacheRoot</a></code></li><li><code class="directive"><a href="../mod/mod_cache_disk.html#cachedirlevels">CacheDirLevels</a></code></li><li><code class="directive"><a href="../mod/mod_cache_disk.html#cachedirlength">CacheDirLength</a></code></li><li><code class="directive"><a href="../mod/mod_cache_disk.html#cacheminfilesize">CacheMinFileSize</a></code></li><li><code class="directive"><a href="../mod/mod_cache_dist.html#cachemaxfilesize">CacheMaxFileSize</a></code></li><li><code class="directive"><a href="../mod/mod_mem_cache.html#mcachesize">MCacheSize</a></code></li><li><code class="directive"><a href="../mod/mod_mem_cache.html#mcachemaxobjectcount">MCacheMaxObjectCount</a></code></li><li><code class="directive"><a href="../mod/mod_mem_cache.html#mcacheminobjectsize">MCacheMinObjectSize</a></code></li><li><code class="directive"><a href="../mod/mod_mem_cache.html#mcachemaxobjectsize">MCacheMaxObjectSize</a></code></li><li><code class="directive"><a href="../mod/mod_mem_cache.html#mcacheremovalalgorithm">MCacheRemovalAlgorithm</a></code></li><li><code class="directive"><a href="../mod/mod_mem_cache.html#mcachemaxstreamingbuffer">MCacheMaxStreamingBuffer</a></code></li></ul></td></tr></table> +</div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="section"> +<h2><a name="sampleconf" id="sampleconf">サンプルè¨å®š</a></h2> + <div class="example"><h3>Sample httpd.conf</h3><p><code> + #<br /> + # Sample Cache Configuration<br /> + #<br /> + LoadModule cache_module modules/mod_cache.so<br /> + <br /> + <IfModule mod_cache.c><br /> + <span class="indent"> + #LoadModule cache_disk_module modules/mod_cache_disk.so<br /> + # If you want to use mod_cache_disk instead of mod_mem_cache,<br /> + # uncomment the line above and comment out the LoadModule line below.<br /> + <IfModule mod_cache_disk.c><br /> + <span class="indent"> + CacheRoot c:/cacheroot<br /> + CacheEnable disk /<br /> + CacheDirLevels 5<br /> + CacheDirLength 3<br /> + </span> + </IfModule> <br /> + <br /> + LoadModule mem_cache_module modules/mod_mem_cache.so<br /> + <IfModule mod_mem_cache.c><br /> + <span class="indent"> + CacheEnable mem /<br /> + MCacheSize 4096<br /> + MCacheMaxObjectCount 100<br /> + MCacheMinObjectSize 1<br /> + MCacheMaxObjectSize 2048<br /> + </span> + </IfModule><br /> + <br /> + # When acting as a proxy, don't cache the list of security updates<br /> + CacheDisable http://security.update.server/update-list/<br /> + </span> + </IfModule> + </code></p></div> +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="CacheDefaultExpire" id="CacheDefaultExpire">CacheDefaultExpire</a> <a name="cachedefaultexpire" id="cachedefaultexpire">ディレクティブ</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">説明:</a></th><td>期日ãŒæŒ‡å®šã•ã‚Œã¦ã„ãªã„ã¨ãã«ãƒ‰ã‚ュメントをã‚ャッシュã™ã‚‹ãƒ‡ãƒ•ã‚©ãƒ«ãƒˆã®æœŸé–“</td></tr> +<tr><th><a href="directive-dict.html#Syntax">構文:</a></th><td><code>CacheDefaultExpire <var>seconds</var></code></td></tr> +<tr><th><a href="directive-dict.html#Default">デフォルト:</a></th><td><code>CacheDefaultExpire 3600 (1時間)</code></td></tr> +<tr><th><a href="directive-dict.html#Context">コンテã‚スト:</a></th><td>サーãƒè¨å®šãƒ•ã‚¡ã‚¤ãƒ«, ãƒãƒ¼ãƒãƒ£ãƒ«ãƒ›ã‚¹ãƒˆ</td></tr> +<tr><th><a href="directive-dict.html#Status">ステータス:</a></th><td>Extension</td></tr> +<tr><th><a href="directive-dict.html#Module">モジュール:</a></th><td>mod_cache</td></tr> +</table> + <p><code class="directive">CacheDefaultExpire</code> ディレクティブã¯ã€ãƒ‰ã‚ュメント㫠+ æœ‰åŠ¹æœŸé™ (expiry) や最終修æ£æ™‚刻 (last-modified) ãŒæŒ‡å®šã•ã‚Œã¦ã„ãªã„å ´åˆã® + デフォルトã®æ™‚間を指定ã—ã¾ã™ã€‚<code class="directive">CacheMaxExpire</code> + ディレクティブã§æŒ‡å®šã•ã‚ŒãŸå€¤ã¯ã“ã®è¨å®šã‚’上書ã<em>ã—ã¾ã›ã‚“</em>。</p> + + <div class="example"><p><code> + CacheDefaultExpire 86400 + </code></p></div> + +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="CacheDetailHeader" id="CacheDetailHeader">CacheDetailHeader</a> <a name="cachedetailheader" id="cachedetailheader">ディレクティブ</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">説明:</a></th><td>Add an X-Cache-Detail header to the response.</td></tr> +<tr><th><a href="directive-dict.html#Syntax">構文:</a></th><td><code>CacheDetailHeader <var>on|off</var></code></td></tr> +<tr><th><a href="directive-dict.html#Default">デフォルト:</a></th><td><code>CacheDetailHeader off</code></td></tr> +<tr><th><a href="directive-dict.html#Context">コンテã‚スト:</a></th><td>サーãƒè¨å®šãƒ•ã‚¡ã‚¤ãƒ«, ãƒãƒ¼ãƒãƒ£ãƒ«ãƒ›ã‚¹ãƒˆ, ディレクトリ, .htaccess</td></tr> +<tr><th><a href="directive-dict.html#Status">ステータス:</a></th><td>Extension</td></tr> +<tr><th><a href="directive-dict.html#Module">モジュール:</a></th><td>mod_cache</td></tr> +<tr><th><a href="directive-dict.html#Compatibility">互æ›æ€§:</a></th><td>Available in Apache 2.3.9 and later</td></tr> +</table><p>ã“ã®ãƒ‡ã‚£ãƒ¬ã‚¯ãƒ†ã‚£ãƒ–ã®è§£èª¬æ–‡æ›¸ã¯ + ã¾ã 翻訳ã•ã‚Œã¦ã„ã¾ã›ã‚“。英語版をã”覧ãã ã•ã„。 + </p></div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="CacheDisable" id="CacheDisable">CacheDisable</a> <a name="cachedisable" id="cachedisable">ディレクティブ</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">説明:</a></th><td>特定㮠URL ã‚’ã‚ャッシュã—ãªã„</td></tr> +<tr><th><a href="directive-dict.html#Syntax">構文:</a></th><td><code>CacheDisable <var> url-string</var></code></td></tr> +<tr><th><a href="directive-dict.html#Context">コンテã‚スト:</a></th><td>サーãƒè¨å®šãƒ•ã‚¡ã‚¤ãƒ«, ãƒãƒ¼ãƒãƒ£ãƒ«ãƒ›ã‚¹ãƒˆ</td></tr> +<tr><th><a href="directive-dict.html#Status">ステータス:</a></th><td>Extension</td></tr> +<tr><th><a href="directive-dict.html#Module">モジュール:</a></th><td>mod_cache</td></tr> +</table> + <p><code class="directive">CacheDisable</code> ディレクティブ㧠+ <code class="module"><a href="../mod/mod_cache.html">mod_cache</a></code> モジュール㌠<var>url-string</var> 以下㮠+ URL ã‚’ã‚ャッシュ<em>ã—ãªã„</em>よã†ã«ã—ã¾ã™ã€‚</p> + + <div class="example"><h3>例</h3><p><code> + CacheDisable /local_files + </code></p></div> + +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="CacheEnable" id="CacheEnable">CacheEnable</a> <a name="cacheenable" id="cacheenable">ディレクティブ</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">説明:</a></th><td>指定ã—ãŸã‚¹ãƒˆãƒ¬ãƒ¼ã‚¸ç®¡ç†æ–¹å¼ã‚’使ã£ã¦ã®ã‚ャッシュを有効ã«ã™ã‚‹</td></tr> +<tr><th><a href="directive-dict.html#Syntax">構文:</a></th><td><code>CacheEnable <var>cache_type</var> <var>url-string</var></code></td></tr> +<tr><th><a href="directive-dict.html#Context">コンテã‚スト:</a></th><td>サーãƒè¨å®šãƒ•ã‚¡ã‚¤ãƒ«, ãƒãƒ¼ãƒãƒ£ãƒ«ãƒ›ã‚¹ãƒˆ</td></tr> +<tr><th><a href="directive-dict.html#Status">ステータス:</a></th><td>Extension</td></tr> +<tr><th><a href="directive-dict.html#Module">モジュール:</a></th><td>mod_cache</td></tr> +</table> + <p><code class="directive">CacheEnable</code> ディレクティブ㧠<code class="module"><a href="../mod/mod_cache.html">mod_cache</a></code> + モジュール㌠<var>url-string</var> 以下㮠URL ã‚’ã‚ャッシュã™ã‚‹ã‚ˆã†ã«ã—ã¾ã™ã€‚ + ã‚ャッシュストレージ管ç†æ–¹å¼ã¯ <var>cache_type</var> 引数ã§æŒ‡å®šã—ã¾ã™ã€‚ + <var>cache_type</var> <code> mem</code> ã§ã€ + <code class="module"><a href="../mod/mod_mem_cache.html">mod_mem_cache</a></code> ã§å®Ÿè£…ã•ã‚Œã¦ã„るメモリを使ã£ãŸã‚¹ãƒˆãƒ¬ãƒ¼ã‚¸ + 管ç†æ–¹å¼ã‚’使ã†ã‚ˆã†ã« <code class="module"><a href="../mod/mod_cache.html">mod_cache</a></code> ã«æŒ‡ç¤ºã—ã¾ã™ã€‚ + <var>cache_type</var> <code>disk</code> ã§ã€ + <code class="module"><a href="../mod/mod_cache_disk.html">mod_cache_disk</a></code> ã§å®Ÿè£…ã•ã‚Œã¦ã„るディスクを使ã£ãŸã‚¹ãƒˆãƒ¬ãƒ¼ã‚¸ + 管ç†ã‚’使ã†ã‚ˆã†ã« <code class="module"><a href="../mod/mod_cache.html">mod_cache</a></code> ã«æŒ‡ç¤ºã—ã¾ã™ã€‚ + <var>cache_type</var> <code>fd</code> 㯠<code class="module"><a href="../mod/mod_cache.html">mod_cache</a></code> ã« + <code class="module"><a href="../mod/mod_mem_cache.html">mod_mem_cache</a></code> ã«ã‚ˆã‚Šå®Ÿè£…ã•ã‚Œã¦ã„るファイル記述åã® + ã‚ャッシュを使ã†ã‚ˆã†ã«æŒ‡ç¤ºã—ã¾ã™ã€‚</p> + + <p>(下ã®ä¾‹ã®ã‚ˆã†ã«) <code class="directive">CacheEnable</code> ディレクティブ㮠+ URL 空間ãŒé‡è¤‡ã—ã¦ã„ã‚‹ã¨ãã¯ã€è©²å½“ã™ã‚‹ã‚¹ãƒˆãƒ¬ãƒ¼ã‚¸æ–¹å¼ã‚’é †ã«è©¦ã—ã¦ã€ + 実際ã«ãƒªã‚¯ã‚¨ã‚¹ãƒˆã®å‡¦ç†ãŒã§ãã‚‹ã¨ã€ãã®æ–¹å¼ã§å‡¦ç†ã—ã¾ã™ã€‚ + ストレージ管ç†æ–¹å¼ãŒå®Ÿè¡Œã•ã‚Œã‚‹é †ç•ªã¯è¨å®šãƒ•ã‚¡ã‚¤ãƒ«ä¸ã® + <code class="directive">CacheEnable</code> ã®é †ç•ªã«ã‚ˆã‚Šæ±ºå®šã•ã‚Œã¾ã™ã€‚</p> + + <div class="example"><p><code> + CacheEnable mem /manual<br /> + CacheEnable fd /images<br /> + CacheEnable disk /<br /> + </code></p></div> + + <p>フォワードプãƒã‚¯ã‚·ã‚µãƒ¼ãƒã¨ã—ã¦å‹•ä½œã™ã‚‹å ´åˆã€ + <var>url-string</var> を使ã£ã¦ã€ã‚ャッシュを有効ã«ã™ã‚‹ãƒªãƒ¢ãƒ¼ãƒˆã‚µã‚¤ãƒˆã‚„ + プãƒã‚¯ã‚·ãƒ—ãƒãƒˆã‚³ãƒ«ã‚’指定ã™ã‚‹ã“ã¨ã‚‚ã§ãã¾ã™ã€‚</p> + + <div class="example"><p><code> + # Cache proxied url's<br /> + CacheEnable disk /<br /><br /> + # Cache FTP-proxied url's<br /> + CacheEnable disk ftp://<br /><br /> + # Cache content from www.apache.org<br /> + CacheEnable disk http://www.apache.org/<br /> + </code></p></div> + + +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="CacheHeader" id="CacheHeader">CacheHeader</a> <a name="cacheheader" id="cacheheader">ディレクティブ</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">説明:</a></th><td>Add an X-Cache header to the response.</td></tr> +<tr><th><a href="directive-dict.html#Syntax">構文:</a></th><td><code>CacheHeader <var>on|off</var></code></td></tr> +<tr><th><a href="directive-dict.html#Default">デフォルト:</a></th><td><code>CacheHeader off</code></td></tr> +<tr><th><a href="directive-dict.html#Context">コンテã‚スト:</a></th><td>サーãƒè¨å®šãƒ•ã‚¡ã‚¤ãƒ«, ãƒãƒ¼ãƒãƒ£ãƒ«ãƒ›ã‚¹ãƒˆ, ディレクトリ, .htaccess</td></tr> +<tr><th><a href="directive-dict.html#Status">ステータス:</a></th><td>Extension</td></tr> +<tr><th><a href="directive-dict.html#Module">モジュール:</a></th><td>mod_cache</td></tr> +<tr><th><a href="directive-dict.html#Compatibility">互æ›æ€§:</a></th><td>Available in Apache 2.3.9 and later</td></tr> +</table><p>ã“ã®ãƒ‡ã‚£ãƒ¬ã‚¯ãƒ†ã‚£ãƒ–ã®è§£èª¬æ–‡æ›¸ã¯ + ã¾ã 翻訳ã•ã‚Œã¦ã„ã¾ã›ã‚“。英語版をã”覧ãã ã•ã„。 + </p></div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="CacheIgnoreCacheControl" id="CacheIgnoreCacheControl">CacheIgnoreCacheControl</a> <a name="cacheignorecachecontrol" id="cacheignorecachecontrol">ディレクティブ</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">説明:</a></th><td>ã‚ャッシュã•ã‚Œã¦ã„るコンテンツを返ã•ãªã„よã†ã«ã‚¯ãƒ©ã‚¤ã‚¢ãƒ³ãƒˆã‹ã‚‰ +リクエストã•ã‚Œã¦ã‚‚無視ã™ã‚‹</td></tr> +<tr><th><a href="directive-dict.html#Syntax">構文:</a></th><td><code>CacheIgnoreCacheControl On|Off</code></td></tr> +<tr><th><a href="directive-dict.html#Default">デフォルト:</a></th><td><code>CacheIgnoreCacheControl Off</code></td></tr> +<tr><th><a href="directive-dict.html#Context">コンテã‚スト:</a></th><td>サーãƒè¨å®šãƒ•ã‚¡ã‚¤ãƒ«, ãƒãƒ¼ãƒãƒ£ãƒ«ãƒ›ã‚¹ãƒˆ</td></tr> +<tr><th><a href="directive-dict.html#Status">ステータス:</a></th><td>Extension</td></tr> +<tr><th><a href="directive-dict.html#Module">モジュール:</a></th><td>mod_cache</td></tr> +</table> + <p>Cache-Control: no-cache ヘッダや Pragma: no-store ヘッダã®ã‚るリクエスト㫠+ 対ã—ã¦ã¯ã€é€šå¸¸ã‚ャッシュを使ã„ã¾ã›ã‚“。<code class="directive">CacheIgnoreCacheControl</code> + ディレクティブを使ã†ã¨ã€ã“ã®å‹•ä½œã‚’上書ãã§ãã¾ã™ã€‚ + <code class="directive">CacheIgnoreCacheControl</code> On ã¨ã™ã‚‹ã¨ã€ + リクエスト㫠no-cache ã¨ã„ã†å€¤ãŒã‚ã£ã¦ã‚‚ã€ã‚ャッシュを使ã£ã¦ãƒ‰ã‚ュメントを + è¿”ã™ã‚ˆã†ã«ãªã‚Šã¾ã™ã€‚èªè¨¼ã‚’å¿…è¦ã¨ã™ã‚‹ãƒ‰ã‚ュメントã¯<em>決ã—ã¦</em> + ã‚ャッシュã•ã‚Œã¾ã›ã‚“。</p> + + <div class="example"><p><code> + CacheIgnoreCacheControl On + </code></p></div> + + <div class="warning"><h3>è¦å‘Š</h3> + ã“ã®ãƒ‡ã‚£ãƒ¬ã‚¯ãƒ†ã‚£ãƒ–を使ã†ã¨ã€ãƒ‰ã‚ュメントå–得時ã«ã‚ャッシュを使ã‚ãªã„よã†ã« + クライアントãŒãƒªã‚¯ã‚¨ã‚¹ãƒˆã—ã¦ã„ã‚‹ã«ã‚‚ã‹ã‹ã‚らãšã€ã‚ャッシュを + 使ã†ã‚ˆã†ã«ãªã‚Šã¾ã™ã€‚ãã®çµæžœã€ + å¤ã„コンテンツãŒé€ã‚‰ã‚Œç¶šã‘ã‚‹ã“ã¨ã«ãªã£ã¦ã—ã¾ã†ã‹ã‚‚ã—ã‚Œã¾ã›ã‚“。 + </div> + +<h3>å‚ç…§</h3> +<ul> +<li><code class="directive"><a href="#cachestoreprivate">CacheStorePrivate</a></code></li> +<li><code class="directive"><a href="#cachestorenostore">CacheStoreNoStore</a></code></li> +</ul> +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="CacheIgnoreHeaders" id="CacheIgnoreHeaders">CacheIgnoreHeaders</a> <a name="cacheignoreheaders" id="cacheignoreheaders">ディレクティブ</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">説明:</a></th><td>指定ã•ã‚ŒãŸ HTTP ヘッダをã‚ャッシュã«ä¿å˜ã—ãªã„。 +</td></tr> +<tr><th><a href="directive-dict.html#Syntax">構文:</a></th><td><code>CacheIgnoreHeaders <var>header-string</var> [<var>header-string</var>] ...</code></td></tr> +<tr><th><a href="directive-dict.html#Default">デフォルト:</a></th><td><code>CacheIgnoreHeaders None</code></td></tr> +<tr><th><a href="directive-dict.html#Context">コンテã‚スト:</a></th><td>サーãƒè¨å®šãƒ•ã‚¡ã‚¤ãƒ«, ãƒãƒ¼ãƒãƒ£ãƒ«ãƒ›ã‚¹ãƒˆ</td></tr> +<tr><th><a href="directive-dict.html#Status">ステータス:</a></th><td>Extension</td></tr> +<tr><th><a href="directive-dict.html#Module">モジュール:</a></th><td>mod_cache</td></tr> +</table> + <p>RFC 2616 ã«ã‚ˆã‚‹ã¨ã€hop-by-hop HTTP ヘッダã¯ã‚ャッシュã«ã¯ä¿ç®¡ã•ã‚Œã¾ã›ã‚“。 + 以下ã®ãƒ˜ãƒƒãƒ€ã¯ hop-by-hop ヘッダã«è©²å½“ã—ã¾ã™ã®ã§ã€ + <code class="directive">CacheIgnoreHeaders</code> + ã®è¨å®šã«<em>関係ãªã</em>ã‚ャッシュã«ã¯ä¿ç®¡ã•ã‚Œã¾ã›ã‚“:</p> + <ul> + <li><code>Connection</code></li> + <li><code>Keep-Alive</code></li> + <li><code>Proxy-Authenticate</code></li> + <li><code>Proxy-Authorization</code></li> + <li><code>TE</code></li> + <li><code>Trailers</code></li> + <li><code>Transfer-Encoding</code></li> + <li><code>Upgrade</code></li> + </ul> + + <p><code class="directive">CacheIgnoreHeaders</code> 㧠+ ã‚ャッシュã«ä¿ç®¡ã—ãªã„è¿½åŠ ã® HTTP ヘッダを指定ã—ã¾ã™ã€‚ + 例ãˆã°ã€ã‚¯ãƒƒã‚ーをã‚ャッシュã«ä¿ç®¡ã—ãªã„よã†ã«ã—ãŸæ–¹ãŒã‚ˆã„å ´åˆã‚‚ + ã‚ã‚‹ã§ã—ょã†ã€‚</p> + + <p><code class="directive">CacheIgnoreHeaders</code> ã®å¼•æ•°ã¯ã€ + ã‚ャッシュã«ä¿ç®¡ã—ãªã„ HTTP ヘッダを空白区切りã«ã—ãŸãƒªã‚¹ãƒˆå½¢å¼ã§ã™ã€‚ + ã‚ャッシュã«ä¿ç®¡ã—ãªã„ヘッダ㌠hop-by-hop ヘッダã ã‘ã®å ´åˆ + (RFC 2616 æº–æ‹ ã®å‹•ä½œã®ã¨ã) ã¯ã€ + <code class="directive">CacheIgnoreHeaders</code> ã‚’ <code>None</code> + ã«è¨å®šã§ãã¾ã™ã€‚</p> + + <div class="example"><h3>例 1</h3><p><code> + CacheIgnoreHeaders Set-Cookie + </code></p></div> + + <div class="example"><h3>例 2</h3><p><code> + CacheIgnoreHeaders None + </code></p></div> + + <div class="warning"><h3>è¦å‘Š:</h3> + <code>Expires</code> ã®ã‚ˆã†ãªé©åˆ‡ã®ã‚ャッシュ管ç†ã®ãŸã‚ã«å¿…è¦ãª + ヘッダ㌠<code class="directive">CacheIgnoreHeaders</code> ã®è¨å®šã«ã‚ˆã‚Š + ä¿ç®¡ã•ã‚Œã¦ã„ãªã„ã¨ãã¯ã€mod_cache ã®å‹•ä½œã¯å®šç¾©ã•ã‚Œã¦ã„ã¾ã›ã‚“。 + </div> + +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="CacheIgnoreNoLastMod" id="CacheIgnoreNoLastMod">CacheIgnoreNoLastMod</a> <a name="cacheignorenolastmod" id="cacheignorenolastmod">ディレクティブ</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">説明:</a></th><td>å¿œç”ã« Last Modified ãŒç„¡ãã¦ã‚‚æ°—ã«ã—ãªã„よã†ã«ã™ã‚‹</td></tr> +<tr><th><a href="directive-dict.html#Syntax">構文:</a></th><td><code>CacheIgnoreNoLastMod On|Off</code></td></tr> +<tr><th><a href="directive-dict.html#Default">デフォルト:</a></th><td><code>CacheIgnoreNoLastMod Off</code></td></tr> +<tr><th><a href="directive-dict.html#Context">コンテã‚スト:</a></th><td>サーãƒè¨å®šãƒ•ã‚¡ã‚¤ãƒ«, ãƒãƒ¼ãƒãƒ£ãƒ«ãƒ›ã‚¹ãƒˆ</td></tr> +<tr><th><a href="directive-dict.html#Status">ステータス:</a></th><td>Extension</td></tr> +<tr><th><a href="directive-dict.html#Module">モジュール:</a></th><td>mod_cache</td></tr> +</table> + <p>通常ã€Last-Modified ã«ã‚ˆã‚‹æœ€çµ‚ä¿®æ£æ™‚刻ã®ç„¡ã„ドã‚ュメントã¯ã‚ャッシュ + ã•ã‚Œã¾ã›ã‚“。(例ãˆã° <code class="module"><a href="../mod/mod_include.html">mod_include</a></code> ã«ã‚ˆã‚‹å‡¦ç†ã®ã¨ããªã©ã«) + Last-Modified 時刻ãŒæ¶ˆåŽ»ã•ã‚ŒãŸã‚Šã€ãã‚‚ãも最åˆã‹ã‚‰æä¾›ã•ã‚Œã¦ã„ãªã„ + 状æ³ãŒã‚ã‚Šã¾ã™ã€‚<code class="directive">CacheIgnoreNoLastMod</code> + ディレクティブを使ã†ã¨ã€Last-Modified 日時ãŒæŒ‡å®šã•ã‚Œã¦ã„ãªã„ + ドã‚ュメントã§ã‚‚ã‚ャッシュã™ã‚‹ã‚ˆã†ã«æŒ‡å®šã§ãã¾ã™ã€‚ドã‚ュメント㫠+ 最終修æ£æ™‚刻 (Last-Modified) æœ‰åŠ¹æœŸé™ (expiry) ãŒãªã„å ´åˆã¯ã€æœ‰åŠ¹æœŸé™ã® + 生æˆã« <code class="directive">CacheDefaultExpire</code> ãŒä½¿ã‚ã‚Œã¾ã™ã€‚</p> + + <div class="example"><p><code> + CacheIgnoreNoLastMod On + </code></p></div> + +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="CacheIgnoreQueryString" id="CacheIgnoreQueryString">CacheIgnoreQueryString</a> <a name="cacheignorequerystring" id="cacheignorequerystring">ディレクティブ</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">説明:</a></th><td>ã‚ャッシュ時ã«ã‚¯ã‚¨ãƒªãƒ¼ã‚¹ãƒˆãƒªãƒ³ã‚°ã‚’無視ã™ã‚‹</td></tr> +<tr><th><a href="directive-dict.html#Syntax">構文:</a></th><td><code>CacheIgnoreQueryString On|Off</code></td></tr> +<tr><th><a href="directive-dict.html#Default">デフォルト:</a></th><td><code>CacheIgnoreQueryString Off</code></td></tr> +<tr><th><a href="directive-dict.html#Context">コンテã‚スト:</a></th><td>サーãƒè¨å®šãƒ•ã‚¡ã‚¤ãƒ«, ãƒãƒ¼ãƒãƒ£ãƒ«ãƒ›ã‚¹ãƒˆ</td></tr> +<tr><th><a href="directive-dict.html#Status">ステータス:</a></th><td>Extension</td></tr> +<tr><th><a href="directive-dict.html#Module">モジュール:</a></th><td>mod_cache</td></tr> +</table> + <p>クエリーストリング付ã®ãƒªã‚¯ã‚¨ã‚¹ãƒˆã«ã¤ã„ã¦ã¯é€šå¸¸ã€ã‚¯ã‚¨ãƒªãƒ¼ã‚¹ãƒˆãƒªãƒ³ã‚°ã”ã¨ã« + 個別ã«ã‚ャッシュã•ã‚Œã¾ã™ã€‚ + ã‚ャッシュã•ã‚Œã‚‹ã®ã¯æœ‰åŠ¹æœŸé™ãŒæŒ‡å®šã•ã‚Œã¦ã„ã‚‹å ´åˆã®ã¿ã§ã€ã“れ㯠+ RFC 2616/13.9 ã«å¾“ã£ãŸã‚‚ã®ã§ã™ã€‚ + <code class="directive">CacheIgnoreQueryString</code> ディレクティブを使ã†ã¨ + 有効期é™ãŒæŒ‡å®šã•ã‚Œã¦ã„ãªãã¦ã‚‚ã‚ャッシュã—ã¾ã™ã—〠+ クエリーストリングãŒç•°ãªã£ã¦ã„ã¦ã‚‚ã‚ャッシュを返ã—ã¾ã™ã€‚ + ã“ã®ãƒ‡ã‚£ãƒ¬ã‚¯ãƒ†ã‚£ãƒ–ãŒæœ‰åŠ¹ã«ãªã£ã¦ã„ã‚‹å ´åˆã€ã‚ャッシュ機能ã®å´é¢ã‹ã‚‰ã¿ã‚‹ã¨ã€ + ã‚ãŸã‹ã‚‚リクエストã«ã‚¯ã‚¨ãƒªãƒ¼ã‚¹ãƒˆãƒªãƒ³ã‚°ãŒã¤ã„ã¦ã„ãªã‹ã£ãŸã‹ã®ã‚ˆã†ã«æ‰±ã„ã¾ã™ã€‚</p> + + <div class="example"><p><code> + CacheIgnoreQueryString On + </code></p></div> + + +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="CacheIgnoreURLSessionIdentifiers" id="CacheIgnoreURLSessionIdentifiers">CacheIgnoreURLSessionIdentifiers</a> <a name="cacheignoreurlsessionidentifiers" id="cacheignoreurlsessionidentifiers">ディレクティブ</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">説明:</a></th><td>Ignore defined session identifiers encoded in the URL when caching +</td></tr> +<tr><th><a href="directive-dict.html#Syntax">構文:</a></th><td><code>CacheIgnoreURLSessionIdentifiers <var>identifier</var> [<var>identifier</var>] ...</code></td></tr> +<tr><th><a href="directive-dict.html#Default">デフォルト:</a></th><td><code>CacheIgnoreURLSessionIdentifiers None</code></td></tr> +<tr><th><a href="directive-dict.html#Context">コンテã‚スト:</a></th><td>サーãƒè¨å®šãƒ•ã‚¡ã‚¤ãƒ«, ãƒãƒ¼ãƒãƒ£ãƒ«ãƒ›ã‚¹ãƒˆ</td></tr> +<tr><th><a href="directive-dict.html#Status">ステータス:</a></th><td>Extension</td></tr> +<tr><th><a href="directive-dict.html#Module">モジュール:</a></th><td>mod_cache</td></tr> +</table><p>ã“ã®ãƒ‡ã‚£ãƒ¬ã‚¯ãƒ†ã‚£ãƒ–ã®è§£èª¬æ–‡æ›¸ã¯ + ã¾ã 翻訳ã•ã‚Œã¦ã„ã¾ã›ã‚“。英語版をã”覧ãã ã•ã„。 + </p></div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="CacheKeyBaseURL" id="CacheKeyBaseURL">CacheKeyBaseURL</a> <a name="cachekeybaseurl" id="cachekeybaseurl">ディレクティブ</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">説明:</a></th><td>Override the base URL of reverse proxied cache keys.</td></tr> +<tr><th><a href="directive-dict.html#Syntax">構文:</a></th><td><code>CacheKeyBaseURL <var>URL</var></code></td></tr> +<tr><th><a href="directive-dict.html#Context">コンテã‚スト:</a></th><td>サーãƒè¨å®šãƒ•ã‚¡ã‚¤ãƒ«, ãƒãƒ¼ãƒãƒ£ãƒ«ãƒ›ã‚¹ãƒˆ</td></tr> +<tr><th><a href="directive-dict.html#Status">ステータス:</a></th><td>Extension</td></tr> +<tr><th><a href="directive-dict.html#Module">モジュール:</a></th><td>mod_cache</td></tr> +<tr><th><a href="directive-dict.html#Compatibility">互æ›æ€§:</a></th><td>Available in Apache 2.3.9 and later</td></tr> +</table><p>ã“ã®ãƒ‡ã‚£ãƒ¬ã‚¯ãƒ†ã‚£ãƒ–ã®è§£èª¬æ–‡æ›¸ã¯ + ã¾ã 翻訳ã•ã‚Œã¦ã„ã¾ã›ã‚“。英語版をã”覧ãã ã•ã„。 + </p></div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="CacheLastModifiedFactor" id="CacheLastModifiedFactor">CacheLastModifiedFactor</a> <a name="cachelastmodifiedfactor" id="cachelastmodifiedfactor">ディレクティブ</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">説明:</a></th><td>LastModified ã®æ—¥ä»˜ã«åŸºã¥ã„ã¦æœ‰åŠ¹æœŸé™ (expiry) +を計算ã™ã‚‹ãŸã‚ã®é‡ã¿ã‚’指定ã™ã‚‹ +</td></tr> +<tr><th><a href="directive-dict.html#Syntax">構文:</a></th><td><code>CacheLastModifiedFactor <var>float</var></code></td></tr> +<tr><th><a href="directive-dict.html#Default">デフォルト:</a></th><td><code>CacheLastModifiedFactor 0.1</code></td></tr> +<tr><th><a href="directive-dict.html#Context">コンテã‚スト:</a></th><td>サーãƒè¨å®šãƒ•ã‚¡ã‚¤ãƒ«, ãƒãƒ¼ãƒãƒ£ãƒ«ãƒ›ã‚¹ãƒˆ</td></tr> +<tr><th><a href="directive-dict.html#Status">ステータス:</a></th><td>Extension</td></tr> +<tr><th><a href="directive-dict.html#Module">モジュール:</a></th><td>mod_cache</td></tr> +</table> + <p>ドã‚ュメント㫠Last-Modified ã®æ—¥ä»˜ãŒç„¡ã„ã‘ã‚Œã©ã‚‚æœ‰åŠ¹æœŸé™ (expiry) + ã®æ—¥ä»˜ãŒã‚ã‚‹ã¨ã„ã†ã¨ãã«ã€æœ‰åŠ¹æœŸé™ã‚’最終修æ£æ™‚刻ã‹ã‚‰ã®çµŒéŽæ™‚é–“ã¨ã—㦠+ 計算ã™ã‚‹ã‚ˆã†ã«ã§ãã¾ã™ã€‚有効期é™ã‚’次ã®è¨ˆç®—å¼ã«å¾“ã£ã¦ç”Ÿæˆã™ã‚‹ã®ã§ã™ãŒã€ + ãã®ã¨ãã«ä½¿ã‚れる <var>factor</var> ã‚’ + <code class="directive">CacheLastModifiedFactor</code> ディレクティブã§æŒ‡å®šã—ã¾ã™ã€‚ + </p> + + <p><code>expiry-period = time-since-last-modified-date * <var>factor</var> + expiry-date = current-date + expiry-period</code></p> + + <p>例ãˆã°ã€ãƒ‰ã‚ュメント㌠10 時間å‰ã«æœ€å¾Œã«ä¿®æ£ã•ã‚Œã¦ã„ã¦ã€ + <var>factor</var> ㌠0.1 ã§ã‚ã‚Œã°ã€æœŸæ—¥ã¯ 10*0.1 = 1 時間㫠+ è¨å®šã•ã‚Œã¾ã™ã€‚ç¾åœ¨æ™‚刻㌠3:00pm ã§ã‚ã‚Œã°ã€è¨ˆç®—ã•ã‚ŒãŸæœŸæ—¥ã¯ + 3:00pm + 1hour = 4:00pm ã«ãªã‚Šã¾ã™ã€‚</p> + + <p>期日㌠<code class="directive">CacheMaxExpire</code> ã§è¨å®šã•ã‚Œã¦ã„る値 + より大ãããªã£ã¦ã—ã¾ã£ã¦ã„ã‚‹å ´åˆã¯ã€<code class="directive">CacheMaxExpire</code> + ã®è¨å®šå€¤ãŒå„ªå…ˆã•ã‚Œã¾ã™ã€‚</p> + + <div class="example"><p><code> + CacheLastModifiedFactor 0.5 + </code></p></div> + +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="CacheLock" id="CacheLock">CacheLock</a> <a name="cachelock" id="cachelock">ディレクティブ</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">説明:</a></th><td>Enable the thundering herd lock.</td></tr> +<tr><th><a href="directive-dict.html#Syntax">構文:</a></th><td><code>CacheLock <var>on|off</var></code></td></tr> +<tr><th><a href="directive-dict.html#Default">デフォルト:</a></th><td><code>CacheLock off</code></td></tr> +<tr><th><a href="directive-dict.html#Context">コンテã‚スト:</a></th><td>サーãƒè¨å®šãƒ•ã‚¡ã‚¤ãƒ«, ãƒãƒ¼ãƒãƒ£ãƒ«ãƒ›ã‚¹ãƒˆ</td></tr> +<tr><th><a href="directive-dict.html#Status">ステータス:</a></th><td>Extension</td></tr> +<tr><th><a href="directive-dict.html#Module">モジュール:</a></th><td>mod_cache</td></tr> +<tr><th><a href="directive-dict.html#Compatibility">互æ›æ€§:</a></th><td>Available in Apache 2.2.15 and later</td></tr> +</table><p>ã“ã®ãƒ‡ã‚£ãƒ¬ã‚¯ãƒ†ã‚£ãƒ–ã®è§£èª¬æ–‡æ›¸ã¯ + ã¾ã 翻訳ã•ã‚Œã¦ã„ã¾ã›ã‚“。英語版をã”覧ãã ã•ã„。 + </p></div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="CacheLockMaxAge" id="CacheLockMaxAge">CacheLockMaxAge</a> <a name="cachelockmaxage" id="cachelockmaxage">ディレクティブ</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">説明:</a></th><td>Set the maximum possible age of a cache lock.</td></tr> +<tr><th><a href="directive-dict.html#Syntax">構文:</a></th><td><code>CacheLockMaxAge <var>integer</var></code></td></tr> +<tr><th><a href="directive-dict.html#Default">デフォルト:</a></th><td><code>CacheLockMaxAge 5</code></td></tr> +<tr><th><a href="directive-dict.html#Context">コンテã‚スト:</a></th><td>サーãƒè¨å®šãƒ•ã‚¡ã‚¤ãƒ«, ãƒãƒ¼ãƒãƒ£ãƒ«ãƒ›ã‚¹ãƒˆ</td></tr> +<tr><th><a href="directive-dict.html#Status">ステータス:</a></th><td>Extension</td></tr> +<tr><th><a href="directive-dict.html#Module">モジュール:</a></th><td>mod_cache</td></tr> +</table><p>ã“ã®ãƒ‡ã‚£ãƒ¬ã‚¯ãƒ†ã‚£ãƒ–ã®è§£èª¬æ–‡æ›¸ã¯ + ã¾ã 翻訳ã•ã‚Œã¦ã„ã¾ã›ã‚“。英語版をã”覧ãã ã•ã„。 + </p></div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="CacheLockPath" id="CacheLockPath">CacheLockPath</a> <a name="cachelockpath" id="cachelockpath">ディレクティブ</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">説明:</a></th><td>Set the lock path directory.</td></tr> +<tr><th><a href="directive-dict.html#Syntax">構文:</a></th><td><code>CacheLockPath <var>directory</var></code></td></tr> +<tr><th><a href="directive-dict.html#Default">デフォルト:</a></th><td><code>CacheLockPath /tmp/mod_cache-lock</code></td></tr> +<tr><th><a href="directive-dict.html#Context">コンテã‚スト:</a></th><td>サーãƒè¨å®šãƒ•ã‚¡ã‚¤ãƒ«, ãƒãƒ¼ãƒãƒ£ãƒ«ãƒ›ã‚¹ãƒˆ</td></tr> +<tr><th><a href="directive-dict.html#Status">ステータス:</a></th><td>Extension</td></tr> +<tr><th><a href="directive-dict.html#Module">モジュール:</a></th><td>mod_cache</td></tr> +</table><p>ã“ã®ãƒ‡ã‚£ãƒ¬ã‚¯ãƒ†ã‚£ãƒ–ã®è§£èª¬æ–‡æ›¸ã¯ + ã¾ã 翻訳ã•ã‚Œã¦ã„ã¾ã›ã‚“。英語版をã”覧ãã ã•ã„。 + </p></div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="CacheMaxExpire" id="CacheMaxExpire">CacheMaxExpire</a> <a name="cachemaxexpire" id="cachemaxexpire">ディレクティブ</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">説明:</a></th><td>ドã‚ュメントをã‚ャッシュã™ã‚‹æœ€å¤§æ™‚間を秒数ã§è¡¨ã—ãŸã‚‚ã®</td></tr> +<tr><th><a href="directive-dict.html#Syntax">構文:</a></th><td><code>CacheMaxExpire <var>seconds</var></code></td></tr> +<tr><th><a href="directive-dict.html#Default">デフォルト:</a></th><td><code>CacheMaxExpire 86400 (一日)</code></td></tr> +<tr><th><a href="directive-dict.html#Context">コンテã‚スト:</a></th><td>サーãƒè¨å®šãƒ•ã‚¡ã‚¤ãƒ«, ãƒãƒ¼ãƒãƒ£ãƒ«ãƒ›ã‚¹ãƒˆ</td></tr> +<tr><th><a href="directive-dict.html#Status">ステータス:</a></th><td>Extension</td></tr> +<tr><th><a href="directive-dict.html#Module">モジュール:</a></th><td>mod_cache</td></tr> +</table> + <p><code class="directive">CacheMaxExpire</code> ディレクティブã¯ã€ + ã‚ャッシュã™ã‚‹ HTTP ドã‚ュメントをã€å…ƒã®ã‚µãƒ¼ãƒã«å•ã„åˆã‚ã›ãªã„ã¾ã¾æœ€å¤§ä½•ç§’ + ä¿æŒã—ã¦ã‚‚よã„ã‹ã‚’指定ã—ã¾ã™ã€‚ã¤ã¾ã‚Šã€ãƒ‰ã‚ュメントã¯æœ€å¤§ã§ã“ã®ç§’æ•°é–“ã¶ã‚“å¤ã + ãªã‚‹ã“ã¨ã«ãªã‚Šã¾ã™ã€‚ã“ã®æœ€å¤§å€¤ã¯ã€<span class="transnote">(<em>訳注:</em> レスãƒãƒ³ã‚¹ä¸ã§)</span>ドã‚ュメントã¨å…±ã« + ドã‚ュメントã®æœŸæ—¥ãŒæä¾›ã•ã‚Œã¦ã„ã‚‹å ´åˆã§ã‚‚é©ç”¨ã•ã‚Œã¾ã™ã€‚</p> + + <div class="example"><p><code> + CacheMaxExpire 604800 + </code></p></div> + +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="CacheMinExpire" id="CacheMinExpire">CacheMinExpire</a> <a name="cacheminexpire" id="cacheminexpire">ディレクティブ</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">説明:</a></th><td>ドã‚ュメントをã‚ャッシュã™ã‚‹æœ€å°ç§’æ•°</td></tr> +<tr><th><a href="directive-dict.html#Syntax">構文:</a></th><td><code>CacheMinExpire <var>seconds</var></code></td></tr> +<tr><th><a href="directive-dict.html#Default">デフォルト:</a></th><td><code>CacheMinExpire 0</code></td></tr> +<tr><th><a href="directive-dict.html#Context">コンテã‚スト:</a></th><td>サーãƒè¨å®šãƒ•ã‚¡ã‚¤ãƒ«, ãƒãƒ¼ãƒãƒ£ãƒ«ãƒ›ã‚¹ãƒˆ</td></tr> +<tr><th><a href="directive-dict.html#Status">ステータス:</a></th><td>Extension</td></tr> +<tr><th><a href="directive-dict.html#Module">モジュール:</a></th><td>mod_cache</td></tr> +</table> + <p>ã‚ャッシュå¯èƒ½ãª HTTP ドã‚ュメントãŒã‚ã£ãŸã¨ãã«ã€ã‚ªãƒªã‚¸ãƒ³ã‚µãƒ¼ãƒã«å•ã„åˆã‚ã›ã‚‹ã“ã¨ãªã + ä¿æŒã™ã‚‹ç§’æ•°ã®æœ€å°å€¤ã¯ <code class="directive">CacheMinExpire</code> ディレクティブを使ã£ã¦è¨å®šã—ã¾ã™ã€‚ + ã“ã®å€¤ã¯ã€ãƒ‰ã‚ュメントã«å¦¥å½“ãªæœ‰åŠ¹æœŸé™ãŒæŒ‡å®šã•ã‚Œã¦ã„ãªã‹ã£ãŸå ´åˆã«ã®ã¿ä½¿ã‚ã‚Œã¾ã™ã€‚</p> + + + <div class="example"><p><code> + CacheMinExpire 3600 + </code></p></div> + +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="CacheQuickHandler" id="CacheQuickHandler">CacheQuickHandler</a> <a name="cachequickhandler" id="cachequickhandler">ディレクティブ</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">説明:</a></th><td>Run the cache from the quick handler.</td></tr> +<tr><th><a href="directive-dict.html#Syntax">構文:</a></th><td><code>CacheQuickHandler <var>on|off</var></code></td></tr> +<tr><th><a href="directive-dict.html#Default">デフォルト:</a></th><td><code>CacheQuickHandler on</code></td></tr> +<tr><th><a href="directive-dict.html#Context">コンテã‚スト:</a></th><td>サーãƒè¨å®šãƒ•ã‚¡ã‚¤ãƒ«, ãƒãƒ¼ãƒãƒ£ãƒ«ãƒ›ã‚¹ãƒˆ</td></tr> +<tr><th><a href="directive-dict.html#Status">ステータス:</a></th><td>Extension</td></tr> +<tr><th><a href="directive-dict.html#Module">モジュール:</a></th><td>mod_cache</td></tr> +<tr><th><a href="directive-dict.html#Compatibility">互æ›æ€§:</a></th><td>Apache HTTP Server 2.3.3 and later</td></tr> +</table><p>ã“ã®ãƒ‡ã‚£ãƒ¬ã‚¯ãƒ†ã‚£ãƒ–ã®è§£èª¬æ–‡æ›¸ã¯ + ã¾ã 翻訳ã•ã‚Œã¦ã„ã¾ã›ã‚“。英語版をã”覧ãã ã•ã„。 + </p></div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="CacheStaleOnError" id="CacheStaleOnError">CacheStaleOnError</a> <a name="cachestaleonerror" id="cachestaleonerror">ディレクティブ</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">説明:</a></th><td>Serve stale content in place of 5xx responses.</td></tr> +<tr><th><a href="directive-dict.html#Syntax">構文:</a></th><td><code>CacheStaleOnError <var>on|off</var></code></td></tr> +<tr><th><a href="directive-dict.html#Default">デフォルト:</a></th><td><code>CacheStaleOnError on</code></td></tr> +<tr><th><a href="directive-dict.html#Context">コンテã‚スト:</a></th><td>サーãƒè¨å®šãƒ•ã‚¡ã‚¤ãƒ«, ãƒãƒ¼ãƒãƒ£ãƒ«ãƒ›ã‚¹ãƒˆ, ディレクトリ, .htaccess</td></tr> +<tr><th><a href="directive-dict.html#Status">ステータス:</a></th><td>Extension</td></tr> +<tr><th><a href="directive-dict.html#Module">モジュール:</a></th><td>mod_cache</td></tr> +<tr><th><a href="directive-dict.html#Compatibility">互æ›æ€§:</a></th><td>Available in Apache 2.3.9 and later</td></tr> +</table><p>ã“ã®ãƒ‡ã‚£ãƒ¬ã‚¯ãƒ†ã‚£ãƒ–ã®è§£èª¬æ–‡æ›¸ã¯ + ã¾ã 翻訳ã•ã‚Œã¦ã„ã¾ã›ã‚“。英語版をã”覧ãã ã•ã„。 + </p></div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="CacheStoreExpired" id="CacheStoreExpired">CacheStoreExpired</a> <a name="cachestoreexpired" id="cachestoreexpired">ディレクティブ</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">説明:</a></th><td>Attempt to cache responses that the server reports as expired</td></tr> +<tr><th><a href="directive-dict.html#Syntax">構文:</a></th><td><code>CacheStoreExpired On|Off</code></td></tr> +<tr><th><a href="directive-dict.html#Default">デフォルト:</a></th><td><code>CacheStoreExpired Off</code></td></tr> +<tr><th><a href="directive-dict.html#Context">コンテã‚スト:</a></th><td>サーãƒè¨å®šãƒ•ã‚¡ã‚¤ãƒ«, ãƒãƒ¼ãƒãƒ£ãƒ«ãƒ›ã‚¹ãƒˆ, ディレクトリ, .htaccess</td></tr> +<tr><th><a href="directive-dict.html#Status">ステータス:</a></th><td>Extension</td></tr> +<tr><th><a href="directive-dict.html#Module">モジュール:</a></th><td>mod_cache</td></tr> +</table><p>ã“ã®ãƒ‡ã‚£ãƒ¬ã‚¯ãƒ†ã‚£ãƒ–ã®è§£èª¬æ–‡æ›¸ã¯ + ã¾ã 翻訳ã•ã‚Œã¦ã„ã¾ã›ã‚“。英語版をã”覧ãã ã•ã„。 + </p></div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="CacheStoreNoStore" id="CacheStoreNoStore">CacheStoreNoStore</a> <a name="cachestorenostore" id="cachestorenostore">ディレクティブ</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">説明:</a></th><td>no-store ã¨æŒ‡å®šã•ã‚Œã¦ã„るレスãƒãƒ³ã‚¹ã®ã‚ャッシュを試ã¿ã‚‹ã€‚</td></tr> +<tr><th><a href="directive-dict.html#Syntax">構文:</a></th><td><code>CacheStoreNoStore On|Off</code></td></tr> +<tr><th><a href="directive-dict.html#Default">デフォルト:</a></th><td><code>CacheStoreNoStore Off</code></td></tr> +<tr><th><a href="directive-dict.html#Context">コンテã‚スト:</a></th><td>サーãƒè¨å®šãƒ•ã‚¡ã‚¤ãƒ«, ãƒãƒ¼ãƒãƒ£ãƒ«ãƒ›ã‚¹ãƒˆ</td></tr> +<tr><th><a href="directive-dict.html#Status">ステータス:</a></th><td>Extension</td></tr> +<tr><th><a href="directive-dict.html#Module">モジュール:</a></th><td>mod_cache</td></tr> +</table> + <p>通常 Cache-Control: no-store ヘッダã®ã¤ã„ã¦ã„るレスãƒãƒ³ã‚¹ã¯ + ã‚ャッシュã•ã‚Œã¾ã›ã‚“。<code class="directive">CacheStoreNoCache</code> + ディレクティブã§ã“ã®æŒ™å‹•ã‚’上書ãã§ãã¾ã™ã€‚ + <code class="directive">CacheStoreNoCache</code> On 㧠no-store ヘッダã®ã¤ã„ã¦ã„ã‚‹ + リソースã«å¯¾ã—ã¦ã‚‚ã‚ャッシュを試ã¿ã‚‹ã‚ˆã†ã«ãªã‚Šã¾ã™ã€‚ + ãŸã ã—èªè¨¼ã®æ±‚ã‚られるリソース㯠<em>決ã—ã¦</em> ã‚ャッシュã•ã‚Œã¾ã›ã‚“。</p> + + <div class="example"><p><code> + CacheStoreNoStore On + </code></p></div> + + <div class="warning"><h3>è¦å‘Š:</h3> + RFC 2616 ã«è¨˜è¼‰ã•ã‚Œã¦ã„るよã†ã« no-store ディレクティブã¯ã€ + "ä¸æ³¨æ„ã«ã‚ˆã‚‹æ©Ÿå¯†æƒ…å ±ã®æ¼æ´©ã‚„残留 (ãƒãƒƒã‚¯ã‚¢ãƒƒãƒ—テープç‰) を防ã" + 目的ã§ä½¿ã‚ã‚Œã¾ã™ãŒã€ã“ã®ã‚ªãƒ—ションを有効ã«ã™ã‚‹ã¨ã€ + æ©Ÿå¯†æƒ…å ±ã‚’ä¿æŒã™ã‚‹ã“ã¨ã«ãªã£ã¦ã—ã¾ã„ã¾ã™ã€‚ + ã§ã™ã®ã§ã€ã“ã“ã§è¦å‘Šã—ã¦ãŠãã¾ã™ã€‚ + </div> + +<h3>å‚ç…§</h3> +<ul> +<li><code class="directive"><a href="#cacheignorecachecontrol">CacheIgnoreCacheControl</a></code></li> +<li><code class="directive"><a href="#cachestoreprivate">CacheStorePrivate</a></code></li> +</ul> +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="CacheStorePrivate" id="CacheStorePrivate">CacheStorePrivate</a> <a name="cachestoreprivate" id="cachestoreprivate">ディレクティブ</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">説明:</a></th><td>private ã¨æŒ‡å®šã•ã‚Œã¦ã„るレスãƒãƒ³ã‚¹ã®ã‚ャッシュを試ã¿ã‚‹ã€‚</td></tr> +<tr><th><a href="directive-dict.html#Syntax">構文:</a></th><td><code>CacheStorePrivate On|Off</code></td></tr> +<tr><th><a href="directive-dict.html#Default">デフォルト:</a></th><td><code>CacheStorePrivate Off</code></td></tr> +<tr><th><a href="directive-dict.html#Context">コンテã‚スト:</a></th><td>サーãƒè¨å®šãƒ•ã‚¡ã‚¤ãƒ«, ãƒãƒ¼ãƒãƒ£ãƒ«ãƒ›ã‚¹ãƒˆ</td></tr> +<tr><th><a href="directive-dict.html#Status">ステータス:</a></th><td>Extension</td></tr> +<tr><th><a href="directive-dict.html#Module">モジュール:</a></th><td>mod_cache</td></tr> +</table> + <p>通常 Cache-Control: private ヘッダã®ã¤ã„ã¦ã„るレスãƒãƒ³ã‚¹ã¯ + ã‚ャッシュã•ã‚Œã¾ã›ã‚“。<code class="directive">CacheStorePrivate</code> + ディレクティブã§ã“ã®æŒ™å‹•ã‚’上書ãã§ãã¾ã™ã€‚ + <code class="directive">CacheStorePrivate</code> On 㧠private ヘッダã®ã¤ã„ã¦ã„ã‚‹ + リソースã«å¯¾ã—ã¦ã‚‚ã‚ャッシュを試ã¿ã‚‹ã‚ˆã†ã«ãªã‚Šã¾ã™ã€‚ + ãŸã ã—èªè¨¼ã®æ±‚ã‚られるリソース㯠<em>決ã—ã¦</em> ã‚ャッシュã•ã‚Œã¾ã›ã‚“。</p> + + <div class="example"><p><code> + CacheStorePrivate On + </code></p></div> + + <div class="warning"><h3>è¦å‘Š:</h3> + 上æµã‚µãƒ¼ãƒãŒã‚ャッシュã—ãªã„よã†ã«æŒ‡å®šã—ã¦ãã¦ã‚‚〠+ ãれを無視ã—ã¦ã‚ャッシュã™ã‚‹ã‚ˆã†ã«ãªã‚Šã¾ã™ã€‚ + 望ã¾ã—ã„挙動ã«ãªã‚‹ã®ã¯ã€æœ¬å½“ã« 'private' ãªã‚ャッシュã«ã¤ã„ã¦ã®ã¿ã§ã—ょã†ã€‚ + </div> + +<h3>å‚ç…§</h3> +<ul> +<li><code class="directive"><a href="#cacheignorecachecontrol">CacheIgnoreCacheControl</a></code></li> +<li><code class="directive"><a href="#cachestorenostore">CacheStoreNoStore</a></code></li> +</ul> +</div> +</div> +<div class="bottomlang"> +<p><span>翻訳済ã¿è¨€èªž: </span><a href="../en/mod/mod_cache.html" hreflang="en" rel="alternate" title="English"> en </a> | +<a href="../fr/mod/mod_cache.html" hreflang="fr" rel="alternate" title="Français"> fr </a> | +<a href="../ja/mod/mod_cache.html" title="Japanese"> ja </a> | +<a href="../ko/mod/mod_cache.html" hreflang="ko" rel="alternate" title="Korean"> ko </a></p> +</div><div class="top"><a href="#page-header"><img src="../images/up.gif" alt="top" /></a></div><div class="section"><h2><a id="comments_section" name="comments_section">コメント</a></h2><div class="warning"><strong>Notice:</strong><br />This is not a Q&A section. 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\ No newline at end of file diff --git a/docs/manual/mod/mod_cache.html.ko.euc-kr b/docs/manual/mod/mod_cache.html.ko.euc-kr new file mode 100644 index 0000000..53a8bf2 --- /dev/null +++ b/docs/manual/mod/mod_cache.html.ko.euc-kr @@ -0,0 +1,532 @@ +<?xml version="1.0" encoding="EUC-KR"?> +<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> +<html xmlns="http://www.w3.org/1999/xhtml" lang="ko" xml:lang="ko"><head> +<meta content="text/html; charset=EUC-KR" http-equiv="Content-Type" /> +<!-- + XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX + This file is generated from xml source: DO NOT EDIT + XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX + --> +<title>mod_cache - Apache HTTP Server Version 2.4</title> +<link href="../style/css/manual.css" rel="stylesheet" media="all" type="text/css" title="Main stylesheet" /> +<link href="../style/css/manual-loose-100pc.css" rel="alternate stylesheet" 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href="http://httpd.apache.org/docs/">Documentation</a> > <a href="../">Version 2.4</a> > <a href="./">¸ðµâ</a></div> +<div id="page-content"> +<div id="preamble"><h1>¾ÆÆÄÄ¡ ¸ðµâ mod_cache</h1> +<div class="toplang"> +<p><span>°¡´ÉÇÑ ¾ð¾î: </span><a href="../en/mod/mod_cache.html" hreflang="en" rel="alternate" title="English"> en </a> | +<a href="../fr/mod/mod_cache.html" hreflang="fr" rel="alternate" title="Français"> fr </a> | +<a href="../ja/mod/mod_cache.html" hreflang="ja" rel="alternate" title="Japanese"> ja </a> | +<a href="../ko/mod/mod_cache.html" title="Korean"> ko </a></p> +</div> +<div class="outofdate">ÀÌ ¹®¼´Â ÃÖ½ÅÆÇ ¹ø¿ªÀÌ ¾Æ´Õ´Ï´Ù. + ÃÖ±Ù¿¡ º¯°æµÈ ³»¿ëÀº ¿µ¾î ¹®¼¸¦ Âü°íÇϼ¼¿ä.</div> +<table class="module"><tr><th><a href="module-dict.html#Description">¼³¸í:</a></th><td>URI¸¦ Å°·Î »ç¿ëÇÏ¿© ³»¿ëÀ» ij½¬ÇÑ´Ù.</td></tr> +<tr><th><a href="module-dict.html#Status">»óÅÂ:</a></th><td>Experimental</td></tr> +<tr><th><a href="module-dict.html#ModuleIdentifier">¸ðµâ¸í:</a></th><td>cache_module</td></tr> +<tr><th><a href="module-dict.html#SourceFile">¼Ò½ºÆÄÀÏ:</a></th><td>mod_cache.c</td></tr></table> +<h3>¿ä¾à</h3> + + <div class="warning"> + ÀÌ ¸ðµâÀº ½ÇÇèÀûÀÎ »óÅÂÀÌ´Ù. ¹®¼´Â ¾ÆÁ÷ ÀÛ¾÷ÁßÀÌ´Ù... + </div> + + <p><code class="module"><a href="../mod/mod_cache.html">mod_cache</a></code>´Â °°Àº ÄÄÇ»ÅÍ¿¡ ÀÖ´Â ³»¿ëÀ̳ª + ÇÁ·Ï½ÃµÈ ³»¿ëÀ» ij½¬ÇÒ ¼ö ÀÖ´Â <a href="http://www.ietf.org/rfc/rfc2616.txt">RFC 2616</a> + ȣȯ HTTP ³»¿ëij½¬¸¦ ±¸ÇöÇÑ´Ù. <code class="module"><a href="../mod/mod_cache.html">mod_cache</a></code>¸¦ + »ç¿ëÇÏ·Á¸é ÀúÀå°ü¸®¸ðµâ(storage management module)ÀÌ ÇÊ¿äÇÏ´Ù. + ±âº» ¾ÆÆÄÄ¡ ¹èÆ÷º»¿¡´Â µÎ°¡Áö ÀúÀå°ü¸®¸ðµâÀÌ ÀÖ´Ù:</p> + <dl> + <dt><code class="module"><a href="../mod/mod_cache_disk.html">mod_cache_disk</a></code></dt> + <dd>´Â µð½ºÅ©±â¹Ý ÀúÀå°ü¸®ÀÚ¸¦ ±¸ÇöÇÑ´Ù.</dd> + + <dt><code class="module"><a href="../mod/mod_mem_cache.html">mod_mem_cache</a></code></dt> + <dd>´Â ¸Þ¸ð¸®±â¹Ý ÀúÀå°ü¸®ÀÚ¸¦ ±¸ÇöÇÑ´Ù. + <code class="module"><a href="../mod/mod_mem_cache.html">mod_mem_cache</a></code>´Â ÆÄÀϱâ¼úÀÚ¸¦ ij½¬Çϰųª + Èü(heap) °ø°£¿¡ °´Ã¼¸¦ ij½¬ÇÏ´Â µÎ°¡Áö ¹æ½ÄÁß ÇÑ°¡Áö ¹æ¹ýÀ¸·Î + µ¿ÀÛÇϵµ·Ï ¼³Á¤ÇÒ ¼ö ÀÖ´Ù. <code class="module"><a href="../mod/mod_mem_cache.html">mod_mem_cache</a></code>´Â + ÀÚ½ÅÀÌ »ý¼ºÇÑ ³»¿ëÀ» ij½¬Çϰųª, (<dfn>¿ªÇÁ·Ï½Ã(reverse proxy)</dfn>·Î + ¾Ë·ÁÁø) <code class="directive"><a href="../mod/mod_proxy.html#proxypass">ProxyPass</a></code>¸¦ + »ç¿ëÇÏ¿© <code class="module"><a href="../mod/mod_proxy.html">mod_proxy</a></code>¸¦ À§ÇØ µÞ´Ü ¼¹ö³»¿ëÀ» + ij½¬ÇÒ ¼ö ÀÖ´Ù.</dd> + </dl> + + <p>³»¿ëÀ» URI¸¦ Åä´ë·Î ¸¸µç Å°·Î ij½¬¿¡ ÀúÀåÇÏ°í °¡Á®¿Â´Ù. + Á¢±Ùº¸È£°¡ µÈ ³»¿ëÀº ij½¬ÇÏÁö¾Ê´Â´Ù.</p> +</div> +<div id="quickview"><a href="https://www.apache.org/foundation/contributing.html" class="badge"><img src="https://www.apache.org/images/SupportApache-small.png" alt="Support Apache!" /></a><h3>ÁÖÁ¦</h3> +<ul id="topics"> +<li><img alt="" src="../images/down.gif" /> <a href="#related">°ü·ÃµÈ ¸ðµâ°ú Áö½Ã¾î</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#sampleconf">¼³Á¤¿¹</a></li> +</ul><h3 class="directives">Áö½Ã¾îµé</h3> +<ul id="toc"> +<li><img alt="" src="../images/down.gif" /> <a href="#cachedefaultexpire">CacheDefaultExpire</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cachedetailheader">CacheDetailHeader</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cachedisable">CacheDisable</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cacheenable">CacheEnable</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cacheheader">CacheHeader</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cacheignorecachecontrol">CacheIgnoreCacheControl</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cacheignoreheaders">CacheIgnoreHeaders</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cacheignorenolastmod">CacheIgnoreNoLastMod</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cacheignorequerystring">CacheIgnoreQueryString</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cacheignoreurlsessionidentifiers">CacheIgnoreURLSessionIdentifiers</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cachekeybaseurl">CacheKeyBaseURL</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cachelastmodifiedfactor">CacheLastModifiedFactor</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cachelock">CacheLock</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cachelockmaxage">CacheLockMaxAge</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cachelockpath">CacheLockPath</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cachemaxexpire">CacheMaxExpire</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cacheminexpire">CacheMinExpire</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cachequickhandler">CacheQuickHandler</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cachestaleonerror">CacheStaleOnError</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cachestoreexpired">CacheStoreExpired</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cachestorenostore">CacheStoreNoStore</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#cachestoreprivate">CacheStorePrivate</a></li> +</ul> +<h3>Bugfix checklist</h3><ul class="seealso"><li><a href="https://www.apache.org/dist/httpd/CHANGES_2.4">httpd changelog</a></li><li><a href="https://bz.apache.org/bugzilla/buglist.cgi?bug_status=__open__&list_id=144532&product=Apache%20httpd-2&query_format=specific&order=changeddate%20DESC%2Cpriority%2Cbug_severity&component=mod_cache">Known issues</a></li><li><a href="https://bz.apache.org/bugzilla/enter_bug.cgi?product=Apache%20httpd-2&component=mod_cache">Report a bug</a></li></ul><h3>Âü°í</h3> +<ul class="seealso"> +<li><a href="#comments_section">Comments</a></li></ul></div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="section"> +<h2><a name="related" id="related">°ü·ÃµÈ ¸ðµâ°ú Áö½Ã¾î</a></h2> + <table class="related"><tr><th>°ü·ÃµÈ ¸ðµâ</th><th>°ü·ÃµÈ Áö½Ã¾î</th></tr><tr><td><ul><li><code class="module"><a href="../mod/mod_cache_disk.html">mod_cache_disk</a></code></li><li><code class="module"><a href="../mod/mod_mem_cache.html">mod_mem_cache</a></code></li></ul></td><td><ul><li><code class="directive"><a href="../mod/mod_cache_disk.html#cacheroot">CacheRoot</a></code></li><li><code class="directive"><a href="../mod/mod_cache_disk.html#cachesize">CacheSize</a></code></li><li><code class="directive"><a href="../mod/mod_cache_disk.html#cachegcinterval">CacheGcInterval</a></code></li><li><code class="directive"><a href="../mod/mod_cache_disk.html#cachedirlevels">CacheDirLevels</a></code></li><li><code class="directive"><a href="../mod/mod_cache_disk.html#cachedirlength">CacheDirLength</a></code></li><li><code class="directive"><a href="../mod/mod_cache_disk.html#cacheexpirycheck">CacheExpiryCheck</a></code></li><li><code class="directive"><a href="../mod/mod_cache_disk.html#cacheminfilesize">CacheMinFileSize</a></code></li><li><code class="directive"><a href="../mod/mod_cache_disk.html#cachemaxfilesize">CacheMaxFileSize</a></code></li><li><code class="directive"><a href="../mod/mod_cache_disk.html#cachetimemargin">CacheTimeMargin</a></code></li><li><code class="directive"><a href="../mod/mod_cache_disk.html#cachegcdaily">CacheGcDaily</a></code></li><li><code class="directive"><a href="../mod/mod_cache_disk.html#cachegcunused">CacheGcUnused</a></code></li><li><code class="directive"><a href="../mod/mod_cache_disk.html#cachegcclean">CacheGcClean</a></code></li><li><code class="directive"><a href="../mod/mod_cache_disk.html#cachegcmemusage">CacheGcMemUsage</a></code></li><li><code class="directive"><a href="../mod/mod_mem_cache.html#mcachesize">MCacheSize</a></code></li><li><code class="directive"><a href="../mod/mod_mem_cache.html#mcachemaxobjectcount">MCacheMaxObjectCount</a></code></li><li><code class="directive"><a href="../mod/mod_mem_cache.html#mcacheminobjectsize">MCacheMinObjectSize</a></code></li><li><code class="directive"><a href="../mod/mod_mem_cache.html#mcachemaxobjectsize">MCacheMaxObjectSize</a></code></li><li><code class="directive"><a href="../mod/mod_mem_cache.html#mcacheremovalalgorithm">MCacheRemovalAlgorithm</a></code></li><li><code class="directive"><a href="../mod/mod_mem_cache.html#mcachemaxstreamingbuffer">MCacheMaxStreamingBuffer</a></code></li></ul></td></tr></table> +</div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="section"> +<h2><a name="sampleconf" id="sampleconf">¼³Á¤¿¹</a></h2> + <div class="example"><h3>Sample httpd.conf</h3><p><code> + #<br /> + # ¿¹Á¦ ij½¬ ¼³Á¤<br /> + #<br /> + LoadModule cache_module modules/mod_cache.so<br /> + <br /> + <IfModule mod_cache.c><br /> + <span class="indent"> + #LoadModule cache_disk_module modules/mod_cache_disk.so<br /> + <IfModule mod_cache_disk.c><br /> + <span class="indent"> + CacheRoot c:/cacheroot<br /> + CacheSize 256<br /> + CacheEnable disk /<br /> + CacheDirLevels 5<br /> + CacheDirLength 3<br /> + </span> + </IfModule> <br /> + <br /> + LoadModule mem_cache_module modules/mod_mem_cache.so<br /> + <IfModule mod_mem_cache.c><br /> + <span class="indent"> + CacheEnable mem /<br /> + MCacheSize 4096<br /> + MCacheMaxObjectCount 100<br /> + MCacheMinObjectSize 1<br /> + MCacheMaxObjectSize 2048<br /> + </span> + </IfModule><br /> + </span> + </IfModule> + </code></p></div> +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="CacheDefaultExpire" id="CacheDefaultExpire">CacheDefaultExpire</a> <a name="cachedefaultexpire" id="cachedefaultexpire">Áö½Ã¾î</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">¼³¸í:</a></th><td>¸¸±â½Ã°£À» ÁöÁ¤ÇÏÁö¾ÊÀº ¹®¼¸¦ ij½¬ÇÒ ±âº» ±â°£.</td></tr> +<tr><th><a href="directive-dict.html#Syntax">¹®¹ý:</a></th><td><code>CacheDefaultExpire <var>seconds</var></code></td></tr> +<tr><th><a href="directive-dict.html#Default">±âº»°ª:</a></th><td><code>CacheDefaultExpire 3600 (one hour)</code></td></tr> +<tr><th><a href="directive-dict.html#Context">»ç¿ëÀå¼Ò:</a></th><td>ÁÖ¼¹ö¼³Á¤, °¡»óÈ£½ºÆ®</td></tr> +<tr><th><a href="directive-dict.html#Status">»óÅÂ:</a></th><td>Experimental</td></tr> +<tr><th><a href="directive-dict.html#Module">¸ðµâ:</a></th><td>mod_cache</td></tr> +</table> + <p><code class="directive">CacheDefaultExpire</code> Áö½Ã¾î´Â ¹®¼ÀÇ + ¸¸±â½Ã°£°ú ÃÖ±Ù¼öÁ¤½Ã°£ÀÌ ¾ø´Â °æ¿ì ¹®¼¸¦ ij½¬ÇÒ ÃÊ´ÜÀ§ + ±âº» ½Ã°£À» ÁöÁ¤ÇÑ´Ù. <code class="directive">CacheMaxExpire</code>·Î + ÁöÁ¤ÇÑ °ªÀÌ ÀÌ ¼³Á¤À» ¹«½ÃÇÏÁö <em>¾Ê´Â´Ù</em>.</p> + + <div class="example"><p><code> + CacheDefaultExpire 86400 + </code></p></div> + +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="CacheDetailHeader" id="CacheDetailHeader">CacheDetailHeader</a> <a name="cachedetailheader" id="cachedetailheader">Áö½Ã¾î</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">¼³¸í:</a></th><td>Add an X-Cache-Detail header to the response.</td></tr> +<tr><th><a href="directive-dict.html#Syntax">¹®¹ý:</a></th><td><code /></td></tr> +<tr><th><a href="directive-dict.html#Context">»ç¿ëÀå¼Ò:</a></th><td>ÁÖ¼¹ö¼³Á¤, °¡»óÈ£½ºÆ®, directory, .htaccess</td></tr> +<tr><th><a href="directive-dict.html#Status">»óÅÂ:</a></th><td>Experimental</td></tr> +<tr><th><a href="directive-dict.html#Module">¸ðµâ:</a></th><td>mod_cache</td></tr> +</table><p>Documentation not yet translated. Please see English version of document.</p> +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="CacheDisable" id="CacheDisable">CacheDisable</a> <a name="cachedisable" id="cachedisable">Áö½Ã¾î</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">¼³¸í:</a></th><td>ƯÁ¤ URLÀ» ij½¬ÇÏÁö ¾Ê´Â´Ù</td></tr> +<tr><th><a href="directive-dict.html#Syntax">¹®¹ý:</a></th><td><code>CacheDisable <var> url-string</var></code></td></tr> +<tr><th><a href="directive-dict.html#Context">»ç¿ëÀå¼Ò:</a></th><td>ÁÖ¼¹ö¼³Á¤, °¡»óÈ£½ºÆ®</td></tr> +<tr><th><a href="directive-dict.html#Status">»óÅÂ:</a></th><td>Experimental</td></tr> +<tr><th><a href="directive-dict.html#Module">¸ðµâ:</a></th><td>mod_cache</td></tr> +</table> + <p><code class="directive">CacheDisable</code> Áö½Ã¾î¸¦ »ç¿ëÇϸé + <code class="module"><a href="../mod/mod_cache.html">mod_cache</a></code>°¡ <var>url-string</var> ÀÌÇÏÀÇ + urlµéÀ» ij½¬ÇÏÁö <em>¾Ê´Â´Ù</em>.</p> + + <div class="example"><h3>¿¹Á¦</h3><p><code> + CacheDisable /local_files + </code></p></div> + +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="CacheEnable" id="CacheEnable">CacheEnable</a> <a name="cacheenable" id="cacheenable">Áö½Ã¾î</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">¼³¸í:</a></th><td>ÁöÁ¤ÇÑ ÀúÀå°ü¸®ÀÚ¸¦ »ç¿ëÇÏ¿© ÁöÁ¤ÇÑ URLÀ» ij½¬ÇÑ´Ù</td></tr> +<tr><th><a href="directive-dict.html#Syntax">¹®¹ý:</a></th><td><code>CacheEnable <var>cache_type</var> <var>url-string</var></code></td></tr> +<tr><th><a href="directive-dict.html#Context">»ç¿ëÀå¼Ò:</a></th><td>ÁÖ¼¹ö¼³Á¤, °¡»óÈ£½ºÆ®</td></tr> +<tr><th><a href="directive-dict.html#Status">»óÅÂ:</a></th><td>Experimental</td></tr> +<tr><th><a href="directive-dict.html#Module">¸ðµâ:</a></th><td>mod_cache</td></tr> +</table> + <p><code class="directive">CacheEnable</code> Áö½Ã¾î¸¦ »ç¿ëÇϸé + <code class="module"><a href="../mod/mod_cache.html">mod_cache</a></code>°¡ <var>url-string</var> ÀÌÇÏ + urlµéÀ» ij½¬ÇÑ´Ù. ij½¬ ÀúÀå°ü¸®ÀÚ´Â <var>cache_type</var> + ¾Æ±Ô¸ÕÆ®·Î ÁöÁ¤ÇÑ´Ù. <var>cache_type</var> <code>mem</code>Àº + <code class="module"><a href="../mod/mod_mem_cache.html">mod_mem_cache</a></code>°¡ ±¸ÇöÇÏ´Â ¸Þ¸ð¸®±â¹Ý + ÀúÀå°ü¸®ÀÚ¸¦ »ç¿ëÇÑ´Ù. <var>cache_type</var> <code>disk</code>´Â + <code class="module"><a href="../mod/mod_cache_disk.html">mod_cache_disk</a></code>°¡ ±¸ÇöÇÏ´Â µð½ºÅ©±â¹Ý + ÀúÀå°ü¸®ÀÚ¸¦ »ç¿ëÇÑ´Ù. <var>cache_type</var> <code>fd</code>´Â + <code class="module"><a href="../mod/mod_mem_cache.html">mod_mem_cache</a></code>°¡ ±¸ÇöÇÏ´Â ÆÄÀϱâ¼úÀÚ Ä³½¬¸¦ + »ç¿ëÇÑ´Ù.</p> + <p>(¾Æ·¡ ¿¹¿Í °°ÀÌ) URL °ø°£ÀÌ ´Ù¸¥ + <code class="directive">CacheEnable</code> Áö½Ã¾î¿Í °ãÄ¡¸é ½ÇÁ¦·Î + ÇÑ ÀúÀå°ü¸®ÀÚ°¡ ¿äûÀ» ó¸®ÇÒ¶§±îÁö µÎ ÀúÀå°ü¸®ÀÚ¸¦ ¸ðµÎ + ½ÇÇàÇÑ´Ù. ¼³Á¤ÆÄÀÏ¿¡¼ <code class="directive">CacheEnable</code> + Áö½Ã¾îÀÇ ¼ø¼´ë·Î ÀúÀå°ü¸®ÀÚ°¡ ½ÇÇàµÈ´Ù.</p> + + <div class="example"><p><code> + CacheEnable mem /manual<br /> + CacheEnable fd /images<br /> + CacheEnable disk /<br /> + </code></p></div> + +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="CacheHeader" id="CacheHeader">CacheHeader</a> <a name="cacheheader" id="cacheheader">Áö½Ã¾î</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">¼³¸í:</a></th><td>Add an X-Cache header to the response.</td></tr> +<tr><th><a href="directive-dict.html#Syntax">¹®¹ý:</a></th><td><code /></td></tr> +<tr><th><a href="directive-dict.html#Context">»ç¿ëÀå¼Ò:</a></th><td>ÁÖ¼¹ö¼³Á¤, °¡»óÈ£½ºÆ®, directory, .htaccess</td></tr> +<tr><th><a href="directive-dict.html#Status">»óÅÂ:</a></th><td>Experimental</td></tr> +<tr><th><a href="directive-dict.html#Module">¸ðµâ:</a></th><td>mod_cache</td></tr> +</table><p>Documentation not yet translated. Please see English version of document.</p> +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="CacheIgnoreCacheControl" id="CacheIgnoreCacheControl">CacheIgnoreCacheControl</a> <a name="cacheignorecachecontrol" id="cacheignorecachecontrol">Áö½Ã¾î</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">¼³¸í:</a></th><td>Ŭ¶óÀ̾ðÆ®°¡ ij½¬ÇÏÁö¾Ê´Â ³»¿ëÀ» ¿äûÇÔÀ» ¹«½ÃÇÑ´Ù.</td></tr> +<tr><th><a href="directive-dict.html#Syntax">¹®¹ý:</a></th><td><code>CacheIgnoreCacheControl On|Off</code></td></tr> +<tr><th><a href="directive-dict.html#Default">±âº»°ª:</a></th><td><code>CacheIgnoreCacheControl Off</code></td></tr> +<tr><th><a href="directive-dict.html#Context">»ç¿ëÀå¼Ò:</a></th><td>ÁÖ¼¹ö¼³Á¤, °¡»óÈ£½ºÆ®</td></tr> +<tr><th><a href="directive-dict.html#Status">»óÅÂ:</a></th><td>Experimental</td></tr> +<tr><th><a href="directive-dict.html#Module">¸ðµâ:</a></th><td>mod_cache</td></tr> +</table> + <p>º¸Åë no-cache³ª no-store Çì´õ°ªÀ» °¡Áø ¹®¼´Â ij½¬¿¡ + ÀúÀåÇÏÁö¾Ê´Â´Ù. <code class="directive">CacheIgnoreCacheControl</code> + Áö½Ã¾î´Â ÀÌ·± ÇൿÀ» º¯°æÇÑ´Ù. + <code class="directive">CacheIgnoreCacheControl</code> OnÀ» »ç¿ëÇϸé + ¼¹ö´Â ¹®¼¿¡ no-cache³ª no-store Çì´õ°ªÀÌ À־ ¹®¼¸¦ + ij½¬ÇÑ´Ù. ÀÎÁõÀÌ ÇÊ¿äÇÑ ¹®¼´Â <em>Àý´ë·Î</em> ij½¬ÇÏÁö + ¾Ê´Â´Ù.</p> + + <div class="example"><p><code> + CacheIgnoreCacheControl On + </code></p></div> + +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="CacheIgnoreHeaders" id="CacheIgnoreHeaders">CacheIgnoreHeaders</a> <a name="cacheignoreheaders" id="cacheignoreheaders">Áö½Ã¾î</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">¼³¸í:</a></th><td>ij½¬¿¡ ÁöÁ¤ÇÑ HTTP Çì´õ(µé)¸¦ ÀúÀåÇÏÁö ¾Ê´Â´Ù +</td></tr> +<tr><th><a href="directive-dict.html#Syntax">¹®¹ý:</a></th><td><code>CacheIgnoreHeaders <var>header-string</var> [<var>header-string</var>] ...</code></td></tr> +<tr><th><a href="directive-dict.html#Default">±âº»°ª:</a></th><td><code>CacheIgnoreHeaders None</code></td></tr> +<tr><th><a href="directive-dict.html#Context">»ç¿ëÀå¼Ò:</a></th><td>ÁÖ¼¹ö¼³Á¤, °¡»óÈ£½ºÆ®</td></tr> +<tr><th><a href="directive-dict.html#Status">»óÅÂ:</a></th><td>Experimental</td></tr> +<tr><th><a href="directive-dict.html#Module">¸ðµâ:</a></th><td>mod_cache</td></tr> +</table> + <p>RFC 2616¿¡ µû¸£¸é È©°£(hop-by-hop) HTTP Çì´õ´Â ij½¬¿¡ + ÀúÀåÇÏÁö ¾Ê´Â´Ù. È©°£ HTTP Çì´õ¿¡´Â ´ÙÀ½°ú °°Àº °ÍÀÌ ÀÖÀ¸¸ç, + <code class="directive">CacheIgnoreHeaders</code> ¼³Á¤°ú °ü°è¾øÀÌ + <em>¾î¶²</em> °æ¿ì¿¡µµ ij½¬¿¡ ÀúÀåµÇÁö ¾Ê´Â´Ù.</p> + + <ul> + <li><code>Connection</code></li> + <li><code>Keep-Alive</code></li> + <li><code>Proxy-Authenticate</code></li> + <li><code>Proxy-Authorization</code></li> + <li><code>TE</code></li> + <li><code>Trailers</code></li> + <li><code>Transfer-Encoding</code></li> + <li><code>Upgrade</code></li> + </ul> + + <p><code class="directive">CacheIgnoreHeaders</code>´Â ij½¬¿¡ ÀúÀåÇϸé + ¾ÈµÇ´Â HTTP Çì´õ¸¦ Ãß°¡·Î ÁöÁ¤ÇÑ´Ù. ¿¹¸¦ µé¾î, ÄíÅ°(cookie)¸¦ + ij½¬¿¡ ÀúÀåÇÏ¸é ¾ÈµÇ´Â °æ¿ì°¡ ÀÖ´Ù.</p> + + <p><code class="directive">CacheIgnoreHeaders</code>´Â ij½¬¿¡ ÀúÀåÇÏÁö + ¾ÊÀ» HTTP Çì´õµéÀ» °ø¹éÀ¸·Î ±¸ºÐÇÑ ¸ñ·ÏÀ» ¹Þ´Â´Ù. (RFC 2616¿¡ + µû¶ó) ij½¬¿¡ È©°£ Çì´õ¸¸ ÀúÀåÇÏÁö ¾ÊÀ¸·Á¸é, + <code class="directive">CacheIgnoreHeaders</code>¸¦ + <code>None</code>À¸·Î ¼³Á¤ÇÑ´Ù.</p> + + <div class="example"><h3>¿¹Á¦ 1</h3><p><code> + CacheIgnoreHeaders Set-Cookie + </code></p></div> + + <div class="example"><h3>¿¹Á¦ 2</h3><p><code> + CacheIgnoreHeaders None + </code></p></div> + + <div class="warning"><h3>°æ°í:</h3> + <code class="directive">CacheIgnoreHeaders</code> ¼³Á¤À» »ç¿ëÇÏ¿© + <code>Expires</code> °°ÀÌ Ä³½¬ °ü¸®¿¡ ÇÊ¿äÇÑ Çì´õ¸¦ ÀúÀåÇÏÁö + ¾ÊÀ¸¸é, mod_cache´Â ºñÁ¤»óÀûÀ¸·Î µ¿ÀÛÇÑ´Ù. + </div> + +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="CacheIgnoreNoLastMod" id="CacheIgnoreNoLastMod">CacheIgnoreNoLastMod</a> <a name="cacheignorenolastmod" id="cacheignorenolastmod">Áö½Ã¾î</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">¼³¸í:</a></th><td>ÀÀ´ä¿¡ Last Modified Çì´õ°¡ ¾ø´Ù´Â »ç½ÇÀ» ¹«½ÃÇÑ´Ù.</td></tr> +<tr><th><a href="directive-dict.html#Syntax">¹®¹ý:</a></th><td><code>CacheIgnoreNoLastMod On|Off</code></td></tr> +<tr><th><a href="directive-dict.html#Default">±âº»°ª:</a></th><td><code>CacheIgnoreNoLastMod Off</code></td></tr> +<tr><th><a href="directive-dict.html#Context">»ç¿ëÀå¼Ò:</a></th><td>ÁÖ¼¹ö¼³Á¤, °¡»óÈ£½ºÆ®</td></tr> +<tr><th><a href="directive-dict.html#Status">»óÅÂ:</a></th><td>Experimental</td></tr> +<tr><th><a href="directive-dict.html#Module">¸ðµâ:</a></th><td>mod_cache</td></tr> +</table> + <p>º¸Åë ÃÖ±Ù¼öÁ¤ÀÏÀÌ ¾ø´Â ¹®¼´Â ij½¬ÇÏÁö ¾Ê´Â´Ù. ¾î¶² °æ¿ì + ÃÖ±Ù¼öÁ¤ÀÏÀ» (¿¹¸¦ µé¾î <code class="module"><a href="../mod/mod_include.html">mod_include</a></code> ó¸®Áß¿¡) + »©°Å³ª óÀ½ºÎÅÍ ¾ø¾úÀ» ¼ö°¡ ÀÖ´Ù. + <code class="directive">CacheIgnoreNoLastMod</code> Áö½Ã¾î´Â ÃÖ±Ù¼öÁ¤ÀÏÀÌ + ¾ø´Â ¹®¼µµ ¹Ýµå½Ã ij½¬Çϵµ·Ï ¸¸µç´Ù. ¹®¼¿¡ ÃÖ±Ù¼öÁ¤ÀÏ°ú + ¸¸±â½Ã°£ÀÌ ¾ø´Â °æ¿ì <code class="directive">CacheDefaultExpire</code> + Áö½Ã¾î·Î ÁöÁ¤ÇÑ °ªÀ» ¸¸±â½Ã°£À¸·Î »ç¿ëÇÑ´Ù.</p> + + <div class="example"><p><code> + CacheIgnoreNoLastMod On + </code></p></div> + +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="CacheIgnoreQueryString" id="CacheIgnoreQueryString">CacheIgnoreQueryString</a> <a name="cacheignorequerystring" id="cacheignorequerystring">Áö½Ã¾î</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">¼³¸í:</a></th><td>Ignore query string when caching</td></tr> +<tr><th><a href="directive-dict.html#Syntax">¹®¹ý:</a></th><td><code /></td></tr> +<tr><th><a href="directive-dict.html#Context">»ç¿ëÀå¼Ò:</a></th><td>ÁÖ¼¹ö¼³Á¤, °¡»óÈ£½ºÆ®</td></tr> +<tr><th><a href="directive-dict.html#Status">»óÅÂ:</a></th><td>Experimental</td></tr> +<tr><th><a href="directive-dict.html#Module">¸ðµâ:</a></th><td>mod_cache</td></tr> +</table><p>Documentation not yet translated. Please see English version of document.</p> +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="CacheIgnoreURLSessionIdentifiers" id="CacheIgnoreURLSessionIdentifiers">CacheIgnoreURLSessionIdentifiers</a> <a name="cacheignoreurlsessionidentifiers" id="cacheignoreurlsessionidentifiers">Áö½Ã¾î</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">¼³¸í:</a></th><td>Ignore defined session identifiers encoded in the URL when caching +</td></tr> +<tr><th><a href="directive-dict.html#Syntax">¹®¹ý:</a></th><td><code /></td></tr> +<tr><th><a href="directive-dict.html#Context">»ç¿ëÀå¼Ò:</a></th><td>ÁÖ¼¹ö¼³Á¤, °¡»óÈ£½ºÆ®</td></tr> +<tr><th><a href="directive-dict.html#Status">»óÅÂ:</a></th><td>Experimental</td></tr> +<tr><th><a href="directive-dict.html#Module">¸ðµâ:</a></th><td>mod_cache</td></tr> +</table><p>Documentation not yet translated. Please see English version of document.</p> +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="CacheKeyBaseURL" id="CacheKeyBaseURL">CacheKeyBaseURL</a> <a name="cachekeybaseurl" id="cachekeybaseurl">Áö½Ã¾î</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">¼³¸í:</a></th><td>Override the base URL of reverse proxied cache keys.</td></tr> +<tr><th><a href="directive-dict.html#Syntax">¹®¹ý:</a></th><td><code /></td></tr> +<tr><th><a href="directive-dict.html#Context">»ç¿ëÀå¼Ò:</a></th><td>ÁÖ¼¹ö¼³Á¤, °¡»óÈ£½ºÆ®</td></tr> +<tr><th><a href="directive-dict.html#Status">»óÅÂ:</a></th><td>Experimental</td></tr> +<tr><th><a href="directive-dict.html#Module">¸ðµâ:</a></th><td>mod_cache</td></tr> +</table><p>Documentation not yet translated. Please see English version of document.</p> +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="CacheLastModifiedFactor" id="CacheLastModifiedFactor">CacheLastModifiedFactor</a> <a name="cachelastmodifiedfactor" id="cachelastmodifiedfactor">Áö½Ã¾î</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">¼³¸í:</a></th><td>LastModified ½Ã°£À¸·Î ¸¸±â½Ã°£À» °è»êÇϴµ¥ »ç¿ëÇÏ´Â +°è¼ö.</td></tr> +<tr><th><a href="directive-dict.html#Syntax">¹®¹ý:</a></th><td><code>CacheLastModifiedFactor <var>float</var></code></td></tr> +<tr><th><a href="directive-dict.html#Default">±âº»°ª:</a></th><td><code>CacheLastModifiedFactor 0.1</code></td></tr> +<tr><th><a href="directive-dict.html#Context">»ç¿ëÀå¼Ò:</a></th><td>ÁÖ¼¹ö¼³Á¤, °¡»óÈ£½ºÆ®</td></tr> +<tr><th><a href="directive-dict.html#Status">»óÅÂ:</a></th><td>Experimental</td></tr> +<tr><th><a href="directive-dict.html#Module">¸ðµâ:</a></th><td>mod_cache</td></tr> +</table> + <p>¹®¼¿¡ ¸¸±â½Ã°£Àº ¾øÁö¸¸ ÃÖ±Ù¼öÁ¤ÀÏÀÌ ÀÖ´Â °æ¿ì ÃÖ±Ù¼öÁ¤ÀÏ + ÀÌÈÄ Áö³ ½Ã°£À¸·Î ¸¸±â½Ã°£À» °è»êÇÑ´Ù. + <code class="directive">CacheLastModifiedFactor</code> Áö½Ã¾î´Â + ¸¸±â½Ã°£À» °è»êÇÏ´Â ´ÙÀ½ °ø½Ä¿¡¼ »ç¿ëÇÒ <var>factor</var>¸¦ + ÁöÁ¤ÇÑ´Ù: + + <code>expiry-period = time-since-last-modified-date * <var>factor</var> + expiry-date = current-date + expiry-period</code> + + ¿¹¸¦ µé¾î, ¹®¼°¡ 10 ½Ã°£ Àü¿¡ ¸¶Áö¸·À¸·Î ¼öÁ¤µÇ¾ú°í <var>factor</var>°¡ + 0.1À̶ó¸é ¸¸±â±â°£Àº 10*01 = 1 ½Ã°£ÀÌ µÈ´Ù. ÇöÀç ½Ã°£ÀÌ + 3:00pmÀ̶ó¸é ¸¸±â½Ã°£Àº 3:00pm + 1½Ã°£ = 4:00pmÀÌ´Ù. + + ¸¸±â±â°£ÀÌ <code class="directive">CacheMaxExpire</code> º¸´Ù ±æ´Ù¸é + <code class="directive">CacheMaxExpire</code>¸¦ »ç¿ëÇÑ´Ù.</p> + + <div class="example"><p><code> + CacheLastModifiedFactor 0.5 + </code></p></div> + +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="CacheLock" id="CacheLock">CacheLock</a> <a name="cachelock" id="cachelock">Áö½Ã¾î</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">¼³¸í:</a></th><td>Enable the thundering herd lock.</td></tr> +<tr><th><a href="directive-dict.html#Syntax">¹®¹ý:</a></th><td><code /></td></tr> +<tr><th><a href="directive-dict.html#Context">»ç¿ëÀå¼Ò:</a></th><td>ÁÖ¼¹ö¼³Á¤, °¡»óÈ£½ºÆ®</td></tr> +<tr><th><a href="directive-dict.html#Status">»óÅÂ:</a></th><td>Experimental</td></tr> +<tr><th><a href="directive-dict.html#Module">¸ðµâ:</a></th><td>mod_cache</td></tr> +</table><p>Documentation not yet translated. Please see English version of document.</p> +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="CacheLockMaxAge" id="CacheLockMaxAge">CacheLockMaxAge</a> <a name="cachelockmaxage" id="cachelockmaxage">Áö½Ã¾î</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">¼³¸í:</a></th><td>Set the maximum possible age of a cache lock.</td></tr> +<tr><th><a href="directive-dict.html#Syntax">¹®¹ý:</a></th><td><code /></td></tr> +<tr><th><a href="directive-dict.html#Context">»ç¿ëÀå¼Ò:</a></th><td>ÁÖ¼¹ö¼³Á¤, °¡»óÈ£½ºÆ®</td></tr> +<tr><th><a href="directive-dict.html#Status">»óÅÂ:</a></th><td>Experimental</td></tr> +<tr><th><a href="directive-dict.html#Module">¸ðµâ:</a></th><td>mod_cache</td></tr> +</table><p>Documentation not yet translated. Please see English version of document.</p> +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="CacheLockPath" id="CacheLockPath">CacheLockPath</a> <a name="cachelockpath" id="cachelockpath">Áö½Ã¾î</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">¼³¸í:</a></th><td>Set the lock path directory.</td></tr> +<tr><th><a href="directive-dict.html#Syntax">¹®¹ý:</a></th><td><code /></td></tr> +<tr><th><a href="directive-dict.html#Context">»ç¿ëÀå¼Ò:</a></th><td>ÁÖ¼¹ö¼³Á¤, °¡»óÈ£½ºÆ®</td></tr> +<tr><th><a href="directive-dict.html#Status">»óÅÂ:</a></th><td>Experimental</td></tr> +<tr><th><a href="directive-dict.html#Module">¸ðµâ:</a></th><td>mod_cache</td></tr> +</table><p>Documentation not yet translated. Please see English version of document.</p> +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="CacheMaxExpire" id="CacheMaxExpire">CacheMaxExpire</a> <a name="cachemaxexpire" id="cachemaxexpire">Áö½Ã¾î</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">¼³¸í:</a></th><td>¹®¼¸¦ ij½¬ÇÏ´Â ÃÊ´ÜÀ§ ÃÖ´ë½Ã°£</td></tr> +<tr><th><a href="directive-dict.html#Syntax">¹®¹ý:</a></th><td><code>CacheMaxExpire <var>seconds</var></code></td></tr> +<tr><th><a href="directive-dict.html#Default">±âº»°ª:</a></th><td><code>CacheMaxExpire 86400 (ÇÏ·ç)</code></td></tr> +<tr><th><a href="directive-dict.html#Context">»ç¿ëÀå¼Ò:</a></th><td>ÁÖ¼¹ö¼³Á¤, °¡»óÈ£½ºÆ®</td></tr> +<tr><th><a href="directive-dict.html#Status">»óÅÂ:</a></th><td>Experimental</td></tr> +<tr><th><a href="directive-dict.html#Module">¸ðµâ:</a></th><td>mod_cache</td></tr> +</table> + <p><code class="directive">CacheMaxExpire</code> Áö½Ã¾î´Â ½ÇÁ¦ ¼¹ö¸¦ + °Ë»çÇÏÁö¾Ê°í ij½¬°¡´ÉÇÑ HTTP ¹®¼¸¦ À¯ÁöÇÒ ¼ö ÀÖ´Â ÃÊ´ÜÀ§ + ÃÖ´ë½Ã°£À» ÁöÁ¤ÇÑ´Ù. Áï, ¹®¼´Â ÃÖ´ëÇÑ ÀÌ ¼³Á¤°ª¸¸Å ¿À·¡µÇ¾ú´Ù. + ¹®¼°¡ ¸¸±â½Ã°£À» ÁöÁ¤ÇÏ¿©µµ ÀÌ ÃÖ´ë°ªÀ» ÁöŲ´Ù.</p> + + <div class="example"><p><code> + CacheMaxExpire 604800 + </code></p></div> + +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="CacheMinExpire" id="CacheMinExpire">CacheMinExpire</a> <a name="cacheminexpire" id="cacheminexpire">Áö½Ã¾î</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">¼³¸í:</a></th><td>The minimum time in seconds to cache a document</td></tr> +<tr><th><a href="directive-dict.html#Syntax">¹®¹ý:</a></th><td><code /></td></tr> +<tr><th><a href="directive-dict.html#Context">»ç¿ëÀå¼Ò:</a></th><td>ÁÖ¼¹ö¼³Á¤, °¡»óÈ£½ºÆ®, directory, .htaccess</td></tr> +<tr><th><a href="directive-dict.html#Status">»óÅÂ:</a></th><td>Experimental</td></tr> +<tr><th><a href="directive-dict.html#Module">¸ðµâ:</a></th><td>mod_cache</td></tr> +</table><p>Documentation not yet translated. Please see English version of document.</p> +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="CacheQuickHandler" id="CacheQuickHandler">CacheQuickHandler</a> <a name="cachequickhandler" id="cachequickhandler">Áö½Ã¾î</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">¼³¸í:</a></th><td>Run the cache from the quick handler.</td></tr> +<tr><th><a href="directive-dict.html#Syntax">¹®¹ý:</a></th><td><code /></td></tr> +<tr><th><a href="directive-dict.html#Context">»ç¿ëÀå¼Ò:</a></th><td>ÁÖ¼¹ö¼³Á¤, °¡»óÈ£½ºÆ®</td></tr> +<tr><th><a href="directive-dict.html#Status">»óÅÂ:</a></th><td>Experimental</td></tr> +<tr><th><a href="directive-dict.html#Module">¸ðµâ:</a></th><td>mod_cache</td></tr> +</table><p>Documentation not yet translated. Please see English version of document.</p> +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="CacheStaleOnError" id="CacheStaleOnError">CacheStaleOnError</a> <a name="cachestaleonerror" id="cachestaleonerror">Áö½Ã¾î</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">¼³¸í:</a></th><td>Serve stale content in place of 5xx responses.</td></tr> +<tr><th><a href="directive-dict.html#Syntax">¹®¹ý:</a></th><td><code /></td></tr> +<tr><th><a href="directive-dict.html#Context">»ç¿ëÀå¼Ò:</a></th><td>ÁÖ¼¹ö¼³Á¤, °¡»óÈ£½ºÆ®, directory, .htaccess</td></tr> +<tr><th><a href="directive-dict.html#Status">»óÅÂ:</a></th><td>Experimental</td></tr> +<tr><th><a href="directive-dict.html#Module">¸ðµâ:</a></th><td>mod_cache</td></tr> +</table><p>Documentation not yet translated. Please see English version of document.</p> +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="CacheStoreExpired" id="CacheStoreExpired">CacheStoreExpired</a> <a name="cachestoreexpired" id="cachestoreexpired">Áö½Ã¾î</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">¼³¸í:</a></th><td>Attempt to cache responses that the server reports as expired</td></tr> +<tr><th><a href="directive-dict.html#Syntax">¹®¹ý:</a></th><td><code /></td></tr> +<tr><th><a href="directive-dict.html#Context">»ç¿ëÀå¼Ò:</a></th><td>ÁÖ¼¹ö¼³Á¤, °¡»óÈ£½ºÆ®, directory, .htaccess</td></tr> +<tr><th><a href="directive-dict.html#Status">»óÅÂ:</a></th><td>Experimental</td></tr> +<tr><th><a href="directive-dict.html#Module">¸ðµâ:</a></th><td>mod_cache</td></tr> +</table><p>Documentation not yet translated. Please see English version of document.</p> +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="CacheStoreNoStore" id="CacheStoreNoStore">CacheStoreNoStore</a> <a name="cachestorenostore" id="cachestorenostore">Áö½Ã¾î</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">¼³¸í:</a></th><td>Attempt to cache requests or responses that have been marked as no-store.</td></tr> +<tr><th><a href="directive-dict.html#Syntax">¹®¹ý:</a></th><td><code /></td></tr> +<tr><th><a href="directive-dict.html#Context">»ç¿ëÀå¼Ò:</a></th><td>ÁÖ¼¹ö¼³Á¤, °¡»óÈ£½ºÆ®, directory, .htaccess</td></tr> +<tr><th><a href="directive-dict.html#Status">»óÅÂ:</a></th><td>Experimental</td></tr> +<tr><th><a href="directive-dict.html#Module">¸ðµâ:</a></th><td>mod_cache</td></tr> +</table><p>Documentation not yet translated. Please see English version of document.</p> +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="CacheStorePrivate" id="CacheStorePrivate">CacheStorePrivate</a> <a name="cachestoreprivate" id="cachestoreprivate">Áö½Ã¾î</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">¼³¸í:</a></th><td>Attempt to cache responses that the server has marked as private</td></tr> +<tr><th><a href="directive-dict.html#Syntax">¹®¹ý:</a></th><td><code /></td></tr> +<tr><th><a href="directive-dict.html#Context">»ç¿ëÀå¼Ò:</a></th><td>ÁÖ¼¹ö¼³Á¤, °¡»óÈ£½ºÆ®, directory, .htaccess</td></tr> +<tr><th><a href="directive-dict.html#Status">»óÅÂ:</a></th><td>Experimental</td></tr> +<tr><th><a href="directive-dict.html#Module">¸ðµâ:</a></th><td>mod_cache</td></tr> +</table><p>Documentation not yet translated. Please see English version of document.</p> +</div> +</div> +<div class="bottomlang"> +<p><span>°¡´ÉÇÑ ¾ð¾î: </span><a href="../en/mod/mod_cache.html" hreflang="en" rel="alternate" title="English"> en </a> | +<a href="../fr/mod/mod_cache.html" hreflang="fr" rel="alternate" title="Français"> fr </a> | +<a href="../ja/mod/mod_cache.html" hreflang="ja" rel="alternate" title="Japanese"> ja </a> | +<a href="../ko/mod/mod_cache.html" title="Korean"> ko </a></p> +</div><div class="top"><a href="#page-header"><img src="../images/up.gif" alt="top" /></a></div><div class="section"><h2><a id="comments_section" name="comments_section">Comments</a></h2><div class="warning"><strong>Notice:</strong><br />This is not a Q&A section. Comments placed here should be pointed towards suggestions on improving the documentation or server, and may be removed again by our moderators if they are either implemented or considered invalid/off-topic. Questions on how to manage the Apache HTTP Server should be directed at either our IRC channel, #httpd, on Freenode, or sent to our <a href="http://httpd.apache.org/lists.html">mailing lists</a>.</div> +<script type="text/javascript"><!--//--><![CDATA[//><!-- +var comments_shortname = 'httpd'; +var comments_identifier = 'http://httpd.apache.org/docs/2.4/mod/mod_cache.html'; +(function(w, d) { + if (w.location.hostname.toLowerCase() == "httpd.apache.org") { + d.write('<div id="comments_thread"><\/div>'); + var s = d.createElement('script'); + s.type = 'text/javascript'; + s.async = true; + s.src = 'https://comments.apache.org/show_comments.lua?site=' + comments_shortname + '&page=' + comments_identifier; + (d.getElementsByTagName('head')[0] || d.getElementsByTagName('body')[0]).appendChild(s); + } + else { + d.write('<div id="comments_thread">Comments are disabled for this page at the moment.<\/div>'); + } +})(window, document); +//--><!]]></script></div><div id="footer"> +<p class="apache">Copyright 2019 The Apache Software Foundation.<br />Licensed under the <a href="http://www.apache.org/licenses/LICENSE-2.0">Apache License, Version 2.0</a>.</p> +<p class="menu"><a href="../mod/">¸ðµâ</a> | <a href="../mod/directives.html">Áö½Ã¾îµé</a> | <a href="http://wiki.apache.org/httpd/FAQ">FAQ</a> | <a href="../glossary.html">¿ë¾î</a> | <a href="../sitemap.html">»çÀÌÆ®¸Ê</a></p></div><script type="text/javascript"><!--//--><![CDATA[//><!-- +if (typeof(prettyPrint) !== 'undefined') { + prettyPrint(); +} +//--><!]]></script> +</body></html>
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