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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_proxy_fdpass.html.en
parentInitial commit. (diff)
downloadapache2-6beeb1b708550be0d4a53b272283e17e5e35fe17.tar.xz
apache2-6beeb1b708550be0d4a53b272283e17e5e35fe17.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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+<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_proxy_fdpass</h1>
+<div class="toplang">
+<p><span>Available Languages: </span><a href="../en/mod/mod_proxy_fdpass.html" title="English">&nbsp;en&nbsp;</a> |
+<a href="../fr/mod/mod_proxy_fdpass.html" hreflang="fr" rel="alternate" title="Français">&nbsp;fr&nbsp;</a></p>
+</div>
+<table class="module"><tr><th><a href="module-dict.html#Description">Description:</a></th><td>fdpass external process support module for
+<code class="module"><a href="../mod/mod_proxy.html">mod_proxy</a></code></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>proxy_fdpass_module</td></tr>
+<tr><th><a href="module-dict.html#SourceFile">Source File:</a></th><td>mod_proxy_fdpass.c</td></tr>
+<tr><th><a href="module-dict.html#Compatibility">Compatibility:</a></th><td>Available for unix in version 2.3 and later</td></tr></table>
+<h3>Summary</h3>
+
+ <p>This module <em>requires</em> the service of <code class="module"><a href="../mod/mod_proxy.html">mod_proxy</a></code>. It provides support for the passing the socket of the
+ client to another process.</p>
+
+ <p><code>mod_proxy_fdpass</code> uses the ability of AF_UNIX domain
+ sockets to <a href="http://www.freebsd.org/cgi/man.cgi?query=recv">pass an
+ open file descriptor</a> to allow another process to finish handling a request.
+ </p>
+
+ <p>The module has a <code>proxy_fdpass_flusher</code> provider interface,
+ which allows another module to optionally send the response headers, or even
+ the start of the response body. The default <code>flush</code> provider
+ disables keep-alive, and sends the response headers, letting the external
+ process just send a response body.
+ </p>
+
+ <p>In order to use another provider, you have to set the <code>flusher</code>
+ parameter in the <code class="directive"><a href="../mod/mod_proxy.html#proxypass">ProxyPass</a></code> directive.
+ </p>
+
+ <p>At this time the only data passed to the external process is the client
+ socket. To receive a client socket, call recvfrom with an allocated
+ <a href="http://www.kernel.org/doc/man-pages/online/pages/man3/cmsg.3.html"><code>struct cmsghdr</code></a>. Future versions of this module may include
+ more data after the client socket, but this is not implemented at this time.
+ </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 class="directives">Directives</h3>
+<p>This module provides no
+ directives.</p>
+<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_proxy_fdpass">Known issues</a></li><li><a href="https://bz.apache.org/bugzilla/enter_bug.cgi?product=Apache%20httpd-2&amp;component=mod_proxy_fdpass">Report a bug</a></li></ul><h3>See also</h3>
+<ul class="seealso">
+<li><code class="module"><a href="../mod/mod_proxy.html">mod_proxy</a></code></li>
+<li><a href="#comments_section">Comments</a></li></ul></div>
+
+</div>
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+<a href="../fr/mod/mod_proxy_fdpass.html" hreflang="fr" rel="alternate" title="Français">&nbsp;fr&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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