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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 15:01:30 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 15:01:30 +0000
commit6beeb1b708550be0d4a53b272283e17e5e35fe17 (patch)
tree1ce8673d4aaa948e5554000101f46536a1e4cc29 /docs/manual/mod/mod_info.html.en
parentInitial commit. (diff)
downloadapache2-3d46059c28a1d66e6e1aeb209491f1324c913a25.tar.xz
apache2-3d46059c28a1d66e6e1aeb209491f1324c913a25.zip
Adding upstream version 2.4.57.upstream/2.4.57
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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+<?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="en" xml:lang="en"><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_info - 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="&lt;-" alt="&lt;-" src="../images/left.gif" /></a></div>
+<div id="path">
+<a href="http://www.apache.org/">Apache</a> &gt; <a href="http://httpd.apache.org/">HTTP Server</a> &gt; <a href="http://httpd.apache.org/docs/">Documentation</a> &gt; <a href="../">Version 2.4</a> &gt; <a href="./">Modules</a></div>
+<div id="page-content">
+<div id="preamble"><h1>Apache Module mod_info</h1>
+<div class="toplang">
+<p><span>Available Languages: </span><a href="../en/mod/mod_info.html" title="English">&nbsp;en&nbsp;</a> |
+<a href="../fr/mod/mod_info.html" hreflang="fr" rel="alternate" title="Français">&nbsp;fr&nbsp;</a> |
+<a href="../ja/mod/mod_info.html" hreflang="ja" rel="alternate" title="Japanese">&nbsp;ja&nbsp;</a> |
+<a href="../ko/mod/mod_info.html" hreflang="ko" rel="alternate" title="Korean">&nbsp;ko&nbsp;</a></p>
+</div>
+<table class="module"><tr><th><a href="module-dict.html#Description">Description:</a></th><td>Provides a comprehensive overview of the server
+configuration</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>info_module</td></tr>
+<tr><th><a href="module-dict.html#SourceFile">Source File:</a></th><td>mod_info.c</td></tr></table>
+<h3>Summary</h3>
+
+ <p>To configure <code class="module"><a href="../mod/mod_info.html">mod_info</a></code>, add the following to your
+ <code>httpd.conf</code> file.</p>
+
+ <pre class="prettyprint lang-config">&lt;Location "/server-info"&gt;
+ SetHandler server-info
+&lt;/Location&gt;</pre>
+
+
+ <p>You may wish to use <code class="module"><a href="../mod/mod_authz_host.html">mod_authz_host</a></code> inside the
+ <code class="directive"><a href="../mod/core.html#location">&lt;Location&gt;</a></code>
+ directive to limit access to your server configuration
+ information:</p>
+
+ <pre class="prettyprint lang-config">&lt;Location "/server-info"&gt;
+ SetHandler server-info
+ Require host example.com
+&lt;/Location&gt;</pre>
+
+
+ <p>Once configured, the server information is obtained by
+ accessing <code>http://your.host.example.com/server-info</code></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="#security">Security Issues</a></li>
+<li><img alt="" src="../images/down.gif" /> <a href="#queries">Selecting the information shown</a></li>
+<li><img alt="" src="../images/down.gif" /> <a href="#startup">Dumping the configuration on startup</a></li>
+<li><img alt="" src="../images/down.gif" /> <a href="#limitations">Known Limitations</a></li>
+</ul><h3 class="directives">Directives</h3>
+<ul id="toc">
+<li><img alt="" src="../images/down.gif" /> <a href="#addmoduleinfo">AddModuleInfo</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__&amp;list_id=144532&amp;product=Apache%20httpd-2&amp;query_format=specific&amp;order=changeddate%20DESC%2Cpriority%2Cbug_severity&amp;component=mod_info">Known issues</a></li><li><a href="https://bz.apache.org/bugzilla/enter_bug.cgi?product=Apache%20httpd-2&amp;component=mod_info">Report a bug</a></li></ul><h3>See also</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="security" id="security">Security Issues</a></h2>
+ <p>Once <code class="module"><a href="../mod/mod_info.html">mod_info</a></code> is loaded into the server, its
+ handler capability is available in <em>all</em> configuration
+ files, including per-directory files (<em>e.g.</em>,
+ <code>.htaccess</code>). This may have security-related
+ ramifications for your site.</p>
+
+ <p>In particular, this module can leak sensitive information
+ from the configuration directives of other Apache modules such as
+ system paths, usernames/passwords, database names, etc. Therefore,
+ this module should <strong>only</strong> be
+ used in a controlled environment and always with caution.</p>
+
+ <p>You will probably want to use <code class="module"><a href="../mod/mod_authz_host.html">mod_authz_host</a></code>
+ to limit access to your server configuration information.</p>
+
+ <div class="example"><h3>Access control</h3><pre class="prettyprint lang-config">&lt;Location "/server-info"&gt;
+ SetHandler server-info
+ # Allow access from server itself
+ Require ip 127.0.0.1
+
+ # Additionally, allow access from local workstation
+ Require ip 192.168.1.17
+&lt;/Location&gt;</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="queries" id="queries">Selecting the information shown</a></h2>
+ <p>By default, the server information includes a list of
+ all enabled modules, and for each module, a description of
+ the directives understood by that module, the hooks implemented
+ by that module, and the relevant directives from the current
+ configuration.</p>
+
+ <p>Other views of the configuration information are available by
+ appending a query to the <code>server-info</code> request. For
+ example, <code>http://your.host.example.com/server-info?config</code>
+ will show all configuration directives.</p>
+
+ <dl>
+ <dt><code>?&lt;module-name&gt;</code></dt>
+ <dd>Only information relevant to the named module</dd>
+ <dt><code>?config</code></dt>
+ <dd>Just the configuration directives, not sorted by module</dd>
+ <dt><code>?hooks</code></dt>
+ <dd>Only the list of Hooks each module is attached to</dd>
+ <dt><code>?list</code></dt>
+ <dd>Only a simple list of enabled modules</dd>
+ <dt><code>?server</code></dt>
+ <dd>Only the basic server information</dd>
+ <dt><code>?providers</code></dt>
+ <dd>List the providers that are available on your server</dd>
+ </dl>
+</div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
+<div class="section">
+<h2><a name="startup" id="startup">Dumping the configuration on startup</a></h2>
+ <p>If the config define <code>-DDUMP_CONFIG</code> is set,
+ <code class="module"><a href="../mod/mod_info.html">mod_info</a></code> will dump the pre-parsed configuration to
+ <code>stdout</code> during server startup.</p>
+
+ <pre class="prettyprint lang-sh">httpd -DDUMP_CONFIG -k start</pre>
+
+
+ <p>Pre-parsed means that directives like
+ <code class="directive"><a href="../mod/core.html#ifdefine">&lt;IfDefine&gt;</a></code> and
+ <code class="directive"><a href="../mod/core.html#ifmodule">&lt;IfModule&gt;</a></code> are
+ evaluated and environment variables are replaced. However it does
+ not represent the final state of the configuration. In particular,
+ it does not represent the merging or overriding that may happen
+ for repeated directives.</p>
+
+ <p>This is roughly equivalent to the <code>?config</code> query.</p>
+</div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
+<div class="section">
+<h2><a name="limitations" id="limitations">Known Limitations</a></h2>
+ <p><code class="module"><a href="../mod/mod_info.html">mod_info</a></code> provides its information by reading the
+ parsed configuration, rather than reading the original configuration
+ file. There are a few limitations as a result of the way the parsed
+ configuration tree is created:</p>
+ <ul>
+ <li>Directives which are executed immediately rather than being
+ stored in the parsed configuration are not listed. These include
+ <code class="directive"><a href="../mod/core.html#serverroot">ServerRoot</a></code>,
+ <code class="directive"><a href="../mod/mod_so.html#loadmodule">LoadModule</a></code>, and
+ <code class="directive"><a href="../mod/mod_so.html#loadfile">LoadFile</a></code>.</li>
+ <li>Directives which control the configuration file itself, such as
+ <code class="directive"><a href="../mod/core.html#include">Include</a></code>,
+ <code class="directive"><a href="../mod/core.html#ifmodule">&lt;IfModule&gt;</a></code> and
+ <code class="directive"><a href="../mod/core.html#ifdefine">&lt;IfDefine&gt;</a></code> are not
+ listed, but the included configuration directives are.</li>
+ <li>Comments are not listed. (This may be considered a feature.)</li>
+ <li>Configuration directives from <code>.htaccess</code> files are
+ not listed (since they do not form part of the permanent server
+ configuration).</li>
+ <li>Container directives such as
+ <code class="directive"><a href="../mod/core.html#directory">&lt;Directory&gt;</a></code>
+ are listed normally, but <code class="module"><a href="../mod/mod_info.html">mod_info</a></code> cannot figure
+ out the line number for the closing
+ <code class="directive"><a href="../mod/core.html#directory">&lt;/Directory&gt;</a></code>.</li>
+ <li>Directives generated by third party modules such as <a href="http://perl.apache.org">mod_perl</a>
+ might not be listed.</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="AddModuleInfo" id="AddModuleInfo">AddModuleInfo</a> <a name="addmoduleinfo" id="addmoduleinfo">Directive</a></h2>
+<table class="directive">
+<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Adds additional information to the module
+information displayed by the server-info handler</td></tr>
+<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>AddModuleInfo <var>module-name</var> <var>string</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_info</td></tr>
+</table>
+ <p>This allows the content of <var>string</var> to be shown as
+ HTML interpreted, <strong>Additional Information</strong> for
+ the module <var>module-name</var>. Example:</p>
+
+ <pre class="prettyprint lang-config">AddModuleInfo mod_deflate.c 'See &lt;a \
+ href="http://httpd.apache.org/docs/2.4/mod/mod_deflate.html"&gt;\
+ http://httpd.apache.org/docs/2.4/mod/mod_deflate.html&lt;/a&gt;'</pre>
+
+
+</div>
+</div>
+<div class="bottomlang">
+<p><span>Available Languages: </span><a href="../en/mod/mod_info.html" title="English">&nbsp;en&nbsp;</a> |
+<a href="../fr/mod/mod_info.html" hreflang="fr" rel="alternate" title="Français">&nbsp;fr&nbsp;</a> |
+<a href="../ja/mod/mod_info.html" hreflang="ja" rel="alternate" title="Japanese">&nbsp;ja&nbsp;</a> |
+<a href="../ko/mod/mod_info.html" hreflang="ko" rel="alternate" title="Korean">&nbsp;ko&nbsp;</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&amp;A section. Comments placed here should be pointed towards suggestions on improving the documentation or server, and may be removed 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 Libera.chat, or sent to our <a href="https://httpd.apache.org/lists.html">mailing lists</a>.</div>
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