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git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1331553 13f79535-47bb-0310-9956-ffa450edef68
212 lines
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XML
212 lines
15 KiB
XML
<?xml version="1.0" encoding="ISO-8859-1"?>
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en"><head><!--
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XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
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This file is generated from xml source: DO NOT EDIT
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XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
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-->
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<title>Configuration Files - Apache HTTP Server</title>
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<link href="./style/css/manual.css" rel="stylesheet" media="all" type="text/css" title="Main stylesheet" />
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<link href="./style/css/manual-loose-100pc.css" rel="alternate stylesheet" media="all" type="text/css" title="No Sidebar - Default font size" />
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<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" />
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<script src="./style/scripts/prettify.js" type="text/javascript">
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</script>
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<link href="./images/favicon.ico" rel="shortcut icon" /></head>
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<body id="manual-page"><div id="page-header">
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<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>
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<p class="apache">Apache HTTP Server Version 2.5</p>
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<img alt="" src="./images/feather.gif" /></div>
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<div class="up"><a href="./"><img title="<-" alt="<-" src="./images/left.gif" /></a></div>
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<div id="path">
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<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 2.5</a></div><div id="page-content"><div id="preamble"><h1>Configuration Files</h1>
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<div class="toplang">
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<p><span>Available Languages: </span><a href="./de/configuring.html" hreflang="de" rel="alternate" title="Deutsch"> de </a> |
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<a href="./en/configuring.html" title="English"> en </a> |
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<a href="./fr/configuring.html" hreflang="fr" rel="alternate" title="Fran<61>ais"> fr </a> |
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<a href="./ja/configuring.html" hreflang="ja" rel="alternate" title="Japanese"> ja </a> |
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<a href="./ko/configuring.html" hreflang="ko" rel="alternate" title="Korean"> ko </a> |
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<a href="./tr/configuring.html" hreflang="tr" rel="alternate" title="T<>rk<72>e"> tr </a></p>
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</div>
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<p>This document describes the files used to configure Apache HTTP
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Server.</p>
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</div>
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<div id="quickview"><ul id="toc"><li><img alt="" src="./images/down.gif" /> <a href="#main">Main Configuration Files</a></li>
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<li><img alt="" src="./images/down.gif" /> <a href="#syntax">Syntax of the Configuration Files</a></li>
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<li><img alt="" src="./images/down.gif" /> <a href="#modules">Modules</a></li>
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<li><img alt="" src="./images/down.gif" /> <a href="#scope">Scope of Directives</a></li>
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<li><img alt="" src="./images/down.gif" /> <a href="#htaccess">.htaccess Files</a></li>
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</ul></div>
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<div class="top"><a href="#page-header"><img alt="top" src="./images/up.gif" /></a></div>
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<div class="section">
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<h2><a name="main" id="main">Main Configuration Files</a></h2>
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<table class="related"><tr><th>Related Modules</th><th>Related Directives</th></tr><tr><td><ul><li><code class="module"><a href="./mod/mod_mime.html">mod_mime</a></code></li></ul></td><td><ul><li><code class="directive"><a href="./mod/core.html#ifdefine"><IfDefine></a></code></li><li><code class="directive"><a href="./mod/core.html#include">Include</a></code></li><li><code class="directive"><a href="./mod/mod_mime.html#typesconfig">TypesConfig</a></code></li></ul></td></tr></table>
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<p>Apache HTTP Server is configured by placing <a href="mod/directives.html">directives</a> in plain text
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configuration files. The main configuration file is usually called
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<code>httpd.conf</code>. The location of this file is set at
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compile-time, but may be overridden with the <code>-f</code>
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command line flag. In addition, other configuration files may be
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added using the <code class="directive"><a href="./mod/core.html#include">Include</a></code>
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directive, and wildcards can be used to include many configuration
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files. Any directive may be placed in any of these configuration
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files. Changes to the main configuration files are only
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recognized by httpd when it is started or restarted.</p>
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<p>The server also reads a file containing mime document types;
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the filename is set by the <code class="directive"><a href="./mod/mod_mime.html#typesconfig">TypesConfig</a></code> directive,
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and is <code>mime.types</code> by default.</p>
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</div><div class="top"><a href="#page-header"><img alt="top" src="./images/up.gif" /></a></div>
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<div class="section">
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<h2><a name="syntax" id="syntax">Syntax of the Configuration Files</a></h2>
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<p>httpd configuration files contain one directive per line.
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The backslash "\" may be used as the last character on a line
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to indicate that the directive continues onto the next line.
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There must be no other characters or white space between the
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backslash and the end of the line.</p>
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<p>Directives in the configuration files are case-insensitive,
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but arguments to directives are often case sensitive. Lines
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that begin with the hash character "#" are considered
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comments, and are ignored. Comments may <strong>not</strong> be
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included on a line after a configuration directive. Blank lines
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and white space occurring before a directive are ignored, so
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you may indent directives for clarity.</p>
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<p>The values of variables defined with the <code class="directive"><a href="./mod/core.html#define">Define</a></code> of or shell environment variables can
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be used in configuration file lines using the syntax <code>${VAR}</code>.
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If "VAR" is the name of a valid variable, the value of that variable is
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substituted into that spot in the configuration file line, and processing
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continues as if that text were found directly in the configuration file.
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Variables defined with <code class="directive"><a href="./mod/core.html#define">Define</a></code> take
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precedence over shell environment variables.
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If the "VAR" variable is not found, the characters <code>${VAR}</code>
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are left unchanged, and a warning is logged.
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Variable names may not contain colon ":" characters, to avoid clashes with
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<code class="directive"><a href="./mod/mod_rewrite.html#rewritemap">RewriteMap</a></code>'s syntax.</p>
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<p>Only shell environment variables defined before the server is started
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can be used in expansions. Environment variables defined in the
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configuration file itself, for example with <code class="directive"><a href="./mod/mod_env.html#setenv">SetEnv</a></code>, take effect too late to be used for
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expansions in the configuration file.</p>
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<p>The maximum length of a line in normal configuration files, after
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variable substitution and joining any continued lines, is approximately
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16 MiB. In <a href="configuring.xml#htaccess">.htaccess files</a>, the
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maximum length is 8190 characters.</p>
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<p>You can check your configuration files for syntax errors
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without starting the server by using <code>apachectl
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configtest</code> or the <code>-t</code> command line
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option.</p>
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<p>You can use <code class="module"><a href="./mod/mod_info.html">mod_info</a></code>'s <code>-DDUMP_CONFIG</code> to
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dump the configuration with all included files and environment
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variables resolved and all comments and non-matching
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<code class="directive"><a href="./mod/core.html#ifdefine"><IfDefine></a></code> and
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<code class="directive"><a href="./mod/core.html#ifmodule"><IfModule></a></code> sections
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removed.</p>
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</div><div class="top"><a href="#page-header"><img alt="top" src="./images/up.gif" /></a></div>
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<div class="section">
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<h2><a name="modules" id="modules">Modules</a></h2>
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<table class="related"><tr><th>Related Modules</th><th>Related Directives</th></tr><tr><td><ul><li><code class="module"><a href="./mod/mod_so.html">mod_so</a></code></li></ul></td><td><ul><li><code class="directive"><a href="./mod/core.html#ifmodule"><IfModule></a></code></li><li><code class="directive"><a href="./mod/mod_so.html#loadmodule">LoadModule</a></code></li></ul></td></tr></table>
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<p>httpd is a modular server. This implies that only the most
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basic functionality is included in the core server. Extended
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features are available through <a href="mod/">modules</a> which can be loaded
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into httpd. By default, a <a href="mod/module-dict.html#Status">base</a> set of modules is
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included in the server at compile-time. If the server is
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compiled to use <a href="dso.html">dynamically loaded</a>
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modules, then modules can be compiled separately and added at
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any time using the <code class="directive"><a href="./mod/mod_so.html#loadmodule">LoadModule</a></code>
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directive.
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Otherwise, httpd must be recompiled to add or remove modules.
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Configuration directives may be included conditional on a
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presence of a particular module by enclosing them in an <code class="directive"><a href="./mod/core.html#ifmodule"><IfModule></a></code> block. However,
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<code class="directive"><IfModule></code> blocks are not
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required, and in some cases may mask the fact that you're missing an
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important module.</p>
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<p>To see which modules are currently compiled into the server,
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you can use the <code>-l</code> command line option. You can also
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see what modules are loaded dynamically using the <code>-M</code>
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command line option.</p>
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</div><div class="top"><a href="#page-header"><img alt="top" src="./images/up.gif" /></a></div>
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<div class="section">
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<h2><a name="scope" id="scope">Scope of Directives</a></h2>
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<table class="related"><tr><th>Related Modules</th><th>Related Directives</th></tr><tr><td /><td><ul><li><code class="directive"><a href="./mod/core.html#directory"><Directory></a></code></li><li><code class="directive"><a href="./mod/core.html#directorymatch"><DirectoryMatch></a></code></li><li><code class="directive"><a href="./mod/core.html#files"><Files></a></code></li><li><code class="directive"><a href="./mod/core.html#filesmatch"><FilesMatch></a></code></li><li><code class="directive"><a href="./mod/core.html#location"><Location></a></code></li><li><code class="directive"><a href="./mod/core.html#locationmatch"><LocationMatch></a></code></li><li><code class="directive"><a href="./mod/core.html#virtualhost"><VirtualHost></a></code></li></ul></td></tr></table>
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<p>Directives placed in the main configuration files apply to
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the entire server. If you wish to change the configuration for
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only a part of the server, you can scope your directives by
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placing them in <code class="directive"><a href="./mod/core.html#directory"><Directory></a></code>, <code class="directive"><a href="./mod/core.html#directorymatch"><DirectoryMatch></a></code>, <code class="directive"><a href="./mod/core.html#files"><Files></a></code>, <code class="directive"><a href="./mod/core.html#filesmatch"><FilesMatch></a></code>, <code class="directive"><a href="./mod/core.html#location"><Location></a></code>, and <code class="directive"><a href="./mod/core.html#locationmatch"><LocationMatch></a></code>
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sections. These sections limit the application of the
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directives which they enclose to particular filesystem
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locations or URLs. They can also be nested, allowing for very
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fine grained configuration.</p>
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<p>httpd has the capability to serve many different websites
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simultaneously. This is called <a href="vhosts/">Virtual
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Hosting</a>. Directives can also be scoped by placing them
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inside <code class="directive"><a href="./mod/core.html#virtualhost"><VirtualHost></a></code>
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sections, so that they will only apply to requests for a
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particular website.</p>
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<p>Although most directives can be placed in any of these
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sections, some directives do not make sense in some contexts.
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For example, directives controlling process creation can only
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be placed in the main server context. To find which directives
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can be placed in which sections, check the <a href="mod/directive-dict.html#Context">Context</a> of the
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directive. For further information, we provide details on <a href="sections.html">How Directory, Location and Files sections
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work</a>.</p>
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</div><div class="top"><a href="#page-header"><img alt="top" src="./images/up.gif" /></a></div>
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<div class="section">
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<h2><a name="htaccess" id="htaccess">.htaccess Files</a></h2>
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<table class="related"><tr><th>Related Modules</th><th>Related Directives</th></tr><tr><td /><td><ul><li><code class="directive"><a href="./mod/core.html#accessfilename">AccessFileName</a></code></li><li><code class="directive"><a href="./mod/core.html#allowoverride">AllowOverride</a></code></li></ul></td></tr></table>
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<p>httpd allows for decentralized management of configuration
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via special files placed inside the web tree. The special files
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are usually called <code>.htaccess</code>, but any name can be
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specified in the <code class="directive"><a href="./mod/core.html#accessfilename">AccessFileName</a></code>
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directive. Directives placed in <code>.htaccess</code> files
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apply to the directory where you place the file, and all
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sub-directories. The <code>.htaccess</code> files follow the
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same syntax as the main configuration files. Since
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<code>.htaccess</code> files are read on every request, changes
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made in these files take immediate effect.</p>
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<p>To find which directives can be placed in
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<code>.htaccess</code> files, check the <a href="mod/directive-dict.html#Context">Context</a> of the
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directive. The server administrator further controls what
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directives may be placed in <code>.htaccess</code> files by
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configuring the <code class="directive"><a href="./mod/core.html#allowoverride">AllowOverride</a></code>
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directive in the main configuration files.</p>
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<p>For more information on <code>.htaccess</code> files, see
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the <a href="howto/htaccess.html">.htaccess tutorial</a>.</p>
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</div></div>
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<div class="bottomlang">
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<p><span>Available Languages: </span><a href="./de/configuring.html" hreflang="de" rel="alternate" title="Deutsch"> de </a> |
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<a href="./en/configuring.html" title="English"> en </a> |
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<a href="./fr/configuring.html" hreflang="fr" rel="alternate" title="Fran<61>ais"> fr </a> |
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<a href="./ja/configuring.html" hreflang="ja" rel="alternate" title="Japanese"> ja </a> |
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<a href="./ko/configuring.html" hreflang="ko" rel="alternate" title="Korean"> ko </a> |
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<a href="./tr/configuring.html" hreflang="tr" rel="alternate" title="T<>rk<72>e"> tr </a></p>
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</div><div id="footer">
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<p class="apache">Copyright 2012 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>
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<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></div><script type="text/javascript"><!--//--><![CDATA[//><!--
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if (typeof(prettyPrint) !== undefined) {
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prettyPrint();
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}
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//--><!]]></script>
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</body></html> |