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<?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><!-- XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX This file is generated from xml source: DO NOT EDIT XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX --><title>mod_vhost_alias - Apache HTTP Server</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 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="../faq/">FAQ</a> | <a href="../glossary.html">Glossary</a> | <a href="../sitemap.html">Sitemap</a></p><p class="apache">Apache HTTP Server Version 2.0</p><img alt="" src="../images/feather.gif" /></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-project/">Documentation</a> > <a href="../">Version 2.0</a> > <a href="./">Modules</a></div><div id="page-content"><div id="preamble"><h1>Apache Module mod_vhost_alias</h1><div class="toplang"><p><span>Available Languages: </span><a href="../en/mod/mod_vhost_alias.html" title="English"> en </a></p></div><table class="module"><tr><th><a href="module-dict.html#Description">Description:</a></th><td>Provides for dynamically configured mass virtualhosting</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營dentifier:</a></th><td>vhost_alias_module</td></tr><tr><th><a href="module-dict.html#SourceFile">Source燜ile:</a></th><td>mod_vhost_alias.c</td></tr></table><h3>Summary</h3> <p>This module creates dynamically configured virtual hosts, by allowing the IP address and/or the <code>Host:</code> header of the HTTP request to be used as part of the pathname to determine what files to serve. This allows for easy use of a huge number of virtual hosts with similar configurations.</p> <div class="note"><h3>Note</h3> <p>If <code class="module"><a href="../mod/mod_alias.html">mod_alias</a></code> or <code class="module"><a href="../mod/mod_userdir.html">mod_userdir</a></code> are used for translating URIs to filenames, they will override the directives of <code class="module"><a href="../mod/mod_vhost_alias.html">mod_vhost_alias</a></code> described below. For example, the following configuration will map <code> /cgi-bin/script.pl</code> to <code> /usr/local/apache2/cgi-bin/script.pl</code> in all cases:</p> <div class="example"><p><code> ScriptAlias /cgi-bin/ /usr/local/apache2/cgi-bin/<br /> VirtualScriptAlias /never/found/%0/cgi-bin/ </code></p></div> </div></div><div id="quickview"><h3 class="directives">Directives</h3><ul id="toc"><li><img alt="" src="../images/down.gif" /> <a href="#virtualdocumentroot">VirtualDocumentRoot</a></li><li><img alt="" src="../images/down.gif" /> <a href="#virtualdocumentrootip">VirtualDocumentRootIP</a></li><li><img alt="" src="../images/down.gif" /> <a href="#virtualscriptalias">VirtualScriptAlias</a></li><li><img alt="" src="../images/down.gif" /> <a href="#virtualscriptaliasip">VirtualScriptAliasIP</a></li></ul><h3>Topics</h3><ul id="topics"><li><img alt="" src="../images/down.gif" /> <a href="#interpol">Directory Name Interpolation</a></li><li><img alt="" src="../images/down.gif" /> <a href="#examples">Examples</a></li></ul><h3>See also</h3><ul class="seealso"><li><code class="directive"><a href="../mod/core.html#usecanonicalname">UseCanonicalName</a></code></li><li><a href="../vhosts/mass.html">Dynamically configured mass virtual hosting</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="interpol" id="interpol">Directory Name Interpolation</a></h2> <p>All the directives in this module interpolate a string into a pathname. The interpolated string (henceforth called the "name") may be either the server name (see the <code class="directive"><a href="../mod/core.html#usecanonicalname">UseCanonicalName</a></code> directive for details on how this is determined) or the IP address of the virtual host on the server in dotted-quad format. The interpolation is controlled by specifiers inspired by <code>printf</code> which have a number of formats:</p><table><tr><td><code>%%</code></td><td>insert a <code>%</code></td></tr><tr><td><code>%p</code></td><td>insert the port number of the virtual host</td></tr><tr><td><code>%N.M</code></td><td>insert (part of) the name</td></tr> </table> <p><code>N</code> and <code>M</code> are used to specify substrings of the name. <code>N</code> selects from the dot-separated components of the name, and <code>M</code> selects characters within whatever <code>N</code> has selected. <code>M</code> is optional and defaults to zero if it isn't present; the dot must be present if and only if <code>M</code> is present. The interpretation is as follows:</p> <table> <tr><td><code>0</code></td> <td>the whole name</td></tr> <tr><td><code>1</code></td> <td>the first part</td></tr> <tr><td><code>2</code></td> <td>the second part</td></tr> <tr><td><code>-1</code></td> <td>the last part</td></tr> <tr><td><code>-2</code></td> <td>the penultimate part</td></tr> <tr><td><code>2+</code></td> <td>the second and all subsequent parts</td></tr> <tr><td><code>-2+</code></td> <td>the penultimate and all preceding parts</td></tr> <tr><td><code>1+</code> and <code>-1+</code></td> <td>the same as <code>0</code></td></tr> </table> <p>If <code>N</code> or <code>M</code> is greater than the number of parts available a single underscore is interpolated. </p></div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div><div class="section"><h2><a name="examples" id="examples">Examples</a></h2> <p>For simple name-based virtual hosts you might use the following directives in your server configuration file:</p> <div class="example"><p><code> UseCanonicalName Off<br /> VirtualDocumentRoot /usr/local/apache/vhosts/%0 </code></p></div> <p>A request for <code>http://www.example.com/directory/file.html</code> will be satisfied by the file <code>/usr/local/apache/vhosts/www.example.com/directory/file.html</code>. </p> <p>For a very large number of virtual hosts it is a good idea to arrange the files to reduce the size of the <code>vhosts</code> directory. To do this you might use the following in your configuration file:</p>⌨️ 快捷键说明
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