1<?xml version="1.0" encoding="ISO-8859-1"?> 2<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> 3<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en"><head><!-- 4 XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX 5 This file is generated from xml source: DO NOT EDIT 6 XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX 7 --> 8<title>Server-Wide Configuration - Apache HTTP Server</title> 9<link href="/style/css/manual.css" rel="stylesheet" media="all" type="text/css" title="Main stylesheet" /> 10<link href="/style/css/manual-loose-100pc.css" rel="alternate stylesheet" media="all" type="text/css" title="No Sidebar - Default font size" /> 11<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" /> 12<script src="/style/scripts/prettify.min.js" type="text/javascript"> 13</script> 14 15<link href="/images/favicon.ico" rel="shortcut icon" /></head> 16<body id="manual-page"><div id="page-header"> 17<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> 18<p class="apache">Apache HTTP Server Version 2.4</p> 19<img alt="" src="/images/feather.gif" /></div> 20<div class="up"><a href="./"><img title="<-" alt="<-" src="/images/left.gif" /></a></div> 21<div id="path"> 22<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></div><div id="page-content"><div id="preamble"><h1>Server-Wide Configuration</h1> 23<div class="toplang"> 24<p><span>Available Languages: </span><a href="/en/server-wide.html" title="English"> en </a> | 25<a href="/fr/server-wide.html" hreflang="fr" rel="alternate" title="Fran�ais"> fr </a> | 26<a href="/ja/server-wide.html" hreflang="ja" rel="alternate" title="Japanese"> ja </a> | 27<a href="/ko/server-wide.html" hreflang="ko" rel="alternate" title="Korean"> ko </a> | 28<a href="/tr/server-wide.html" hreflang="tr" rel="alternate" title="T�rk�e"> tr </a></p> 29</div> 30 31<p>This document explains some of the directives provided by 32the <code class="module"><a href="/mod/core.html">core</a></code> server which are used to configure 33the basic operations of the server.</p> 34</div> 35<div id="quickview"><ul id="toc"><li><img alt="" src="/images/down.gif" /> <a href="#identification">Server Identification</a></li> 36<li><img alt="" src="/images/down.gif" /> <a href="#locations">File Locations</a></li> 37<li><img alt="" src="/images/down.gif" /> <a href="#resource">Limiting Resource Usage</a></li> 38<li><img alt="" src="/images/down.gif" /> <a href="#implementation">Implementation Choices</a></li> 39</ul><ul class="seealso"><li><a href="#comments_section">Comments</a></li></ul></div> 40<div class="top"><a href="#page-header"><img alt="top" src="/images/up.gif" /></a></div> 41<div class="section"> 42<h2><a name="identification" id="identification">Server Identification</a></h2> 43 44 45 <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#servername">ServerName</a></code></li><li><code class="directive"><a href="/mod/core.html#serveradmin">ServerAdmin</a></code></li><li><code class="directive"><a href="/mod/core.html#serversignature">ServerSignature</a></code></li><li><code class="directive"><a href="/mod/core.html#servertokens">ServerTokens</a></code></li><li><code class="directive"><a href="/mod/core.html#usecanonicalname">UseCanonicalName</a></code></li><li><code class="directive"><a href="/mod/core.html#usecanonicalphysicalport">UseCanonicalPhysicalPort</a></code></li></ul></td></tr></table> 46 47 <p>The <code class="directive"><a href="/mod/core.html#serveradmin">ServerAdmin</a></code> and 48 <code class="directive"><a href="/mod/core.html#servertokens">ServerTokens</a></code> directives 49 control what information about the server will be presented 50 in server-generated documents such as error messages. The 51 <code class="directive"><a href="/mod/core.html#servertokens">ServerTokens</a></code> directive 52 sets the value of the Server HTTP response header field.</p> 53 54 <p>The <code class="directive"><a href="/mod/core.html#servername">ServerName</a></code>, 55 <code class="directive"><a href="/mod/core.html#usecanonicalname">UseCanonicalName</a></code> and 56 <code class="directive"><a href="/mod/core.html#usecanonicalphysicalport">UseCanonicalPhysicalPort</a></code> 57 directives are used by the server to determine how to construct 58 self-referential URLs. For example, when a client requests a 59 directory, but does not include the trailing slash in the 60 directory name, httpd must redirect the client to the full 61 name including the trailing slash so that the client will 62 correctly resolve relative references in the document.</p> 63 </div><div class="top"><a href="#page-header"><img alt="top" src="/images/up.gif" /></a></div> 64<div class="section"> 65<h2><a name="locations" id="locations">File Locations</a></h2> 66 67 68 <table class="related"><tr><th>Related Modules</th><th>Related Directives</th></tr><tr><td /><td><ul><li><code class="directive"><a href="/mod/mpm_common.html#coredumpdirectory">CoreDumpDirectory</a></code></li><li><code class="directive"><a href="/mod/core.html#documentroot">DocumentRoot</a></code></li><li><code class="directive"><a href="/mod/core.html#errorlog">ErrorLog</a></code></li><li><code class="directive"><a href="/mod/core.html#mutex">Mutex</a></code></li><li><code class="directive"><a href="/mod/mpm_common.html#pidfile">PidFile</a></code></li><li><code class="directive"><a href="/mod/mpm_common.html#scoreboardfile">ScoreBoardFile</a></code></li><li><code class="directive"><a href="/mod/core.html#serverroot">ServerRoot</a></code></li></ul></td></tr></table> 69 70 <p>These directives control the locations of the various files 71 that httpd needs for proper operation. When the pathname used 72 does not begin with a slash (/), the files are located relative 73 to the <code class="directive"><a href="/mod/core.html#serverroot">ServerRoot</a></code>. Be careful 74 about locating files in paths which are writable by non-root users. 75 See the <a href="misc/security_tips.html#serverroot">security tips</a> 76 documentation for more details.</p> 77 </div><div class="top"><a href="#page-header"><img alt="top" src="/images/up.gif" /></a></div> 78<div class="section"> 79<h2><a name="resource" id="resource">Limiting Resource Usage</a></h2> 80 81 82 <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#limitrequestbody">LimitRequestBody</a></code></li><li><code class="directive"><a href="/mod/core.html#limitrequestfields">LimitRequestFields</a></code></li><li><code class="directive"><a href="/mod/core.html#limitrequestfieldsize">LimitRequestFieldsize</a></code></li><li><code class="directive"><a href="/mod/core.html#limitrequestline">LimitRequestLine</a></code></li><li><code class="directive"><a href="/mod/core.html#rlimitcpu">RLimitCPU</a></code></li><li><code class="directive"><a href="/mod/core.html#rlimitmem">RLimitMEM</a></code></li><li><code class="directive"><a href="/mod/core.html#rlimitnproc">RLimitNPROC</a></code></li><li><code class="directive"><a href="/mod/mpm_common.html#threadstacksize">ThreadStackSize</a></code></li></ul></td></tr></table> 83 84 <p>The <code class="directive">LimitRequest</code>* 85 directives are used to place limits on the amount of resources 86 httpd will use in reading requests from clients. By limiting 87 these values, some kinds of denial of service attacks can be 88 mitigated.</p> 89 90 <p>The <code class="directive">RLimit</code>* directives 91 are used to limit the amount of resources which can be used by 92 processes forked off from the httpd children. In particular, 93 this will control resources used by CGI scripts and SSI exec 94 commands.</p> 95 96 <p>The <code class="directive"><a href="/mod/mpm_common.html#threadstacksize">ThreadStackSize</a></code> 97 directive is used with some platforms to control the stack size.</p> 98 </div><div class="top"><a href="#page-header"><img alt="top" src="/images/up.gif" /></a></div> 99<div class="section"> 100<h2><a name="implementation" id="implementation">Implementation Choices</a></h2> 101 102 103 <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#mutex">Mutex</a></code></li></ul></td></tr></table> 104 105 <p>The <code class="directive">Mutex</code> directive can be used to change 106 the underlying implementation used for mutexes, in order to relieve 107 functional or performance problems with <a class="glossarylink" href="/glossary.html#apr" title="see glossary">APR</a>'s 108 default choice.</p> 109 </div></div> 110<div class="bottomlang"> 111<p><span>Available Languages: </span><a href="/en/server-wide.html" title="English"> en </a> | 112<a href="/fr/server-wide.html" hreflang="fr" rel="alternate" title="Fran�ais"> fr </a> | 113<a href="/ja/server-wide.html" hreflang="ja" rel="alternate" title="Japanese"> ja </a> | 114<a href="/ko/server-wide.html" hreflang="ko" rel="alternate" title="Korean"> ko </a> | 115<a href="/tr/server-wide.html" hreflang="tr" rel="alternate" title="T�rk�e"> tr </a></p> 116</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> 117<script type="text/javascript"><!--//--><![CDATA[//><!-- 118var comments_shortname = 'httpd'; 119var comments_identifier = 'http://httpd.apache.org/docs/2.4/server-wide.html'; 120(function(w, d) { 121 if (w.location.hostname.toLowerCase() == "httpd.apache.org") { 122 d.write('<div id="comments_thread"><\/div>'); 123 var s = d.createElement('script'); 124 s.type = 'text/javascript'; 125 s.async = true; 126 s.src = 'https://comments.apache.org/show_comments.lua?site=' + comments_shortname + '&page=' + comments_identifier; 127 (d.getElementsByTagName('head')[0] || d.getElementsByTagName('body')[0]).appendChild(s); 128 } 129 else { 130 d.write('<div id="comments_thread">Comments are disabled for this page at the moment.<\/div>'); 131 } 132})(window, document); 133//--><!]]></script></div><div id="footer"> 134<p class="apache">Copyright 2014 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> 135<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></div><script type="text/javascript"><!--//--><![CDATA[//><!-- 136if (typeof(prettyPrint) !== 'undefined') { 137 prettyPrint(); 138} 139//--><!]]></script> 140</body></html>
