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   8 <title>Server-Wide Configuration - Apache HTTP Server</title>
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  13 <body id="manual-page"><div id="page-header">
  14 <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>
  15 <p class="apache">Apache HTTP Server Version 2.3</p>
  16 <img alt="" src="./images/feather.gif" /></div>
  17 <div class="up"><a href="./"><img title="&lt;-" alt="&lt;-" src="./images/left.gif" /></a></div>
  18 <div id="path">
  19 <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 2.3</a></div><div id="page-content"><div id="preamble"><h1>Server-Wide Configuration</h1>
  20 <div class="toplang">
  21 <p><span>Available Languages: </span><a href="./en/server-wide.html" title="English">&nbsp;en&nbsp;</a> |
  22 <a href="./fr/server-wide.html" hreflang="fr" rel="alternate" title="Français">&nbsp;fr&nbsp;</a> |
  23 <a href="./ja/server-wide.html" hreflang="ja" rel="alternate" title="Japanese">&nbsp;ja&nbsp;</a> |
  24 <a href="./ko/server-wide.html" hreflang="ko" rel="alternate" title="Korean">&nbsp;ko&nbsp;</a> |
  25 <a href="./tr/server-wide.html" hreflang="tr" rel="alternate" title="Türkçe">&nbsp;tr&nbsp;</a></p>
  26 </div>
  27
  28 <p>This document explains some of the directives provided by
  29 the <code class="module"><a href="./mod/core.html">core</a></code> server which are used to configure
  30 the basic operations of the server.</p>
  31 </div>
  32 <div id="quickview"><ul id="toc"><li><img alt="" src="./images/down.gif" /> <a href="#identification">Server Identification</a></li>
  33 <li><img alt="" src="./images/down.gif" /> <a href="#locations">File Locations</a></li>
  34 <li><img alt="" src="./images/down.gif" /> <a href="#resource">Limiting Resource Usage</a></li>
  35 </ul></div>
  36 <div class="top"><a href="#page-header"><img alt="top" src="./images/up.gif" /></a></div>
  37 <div class="section">
  38 <h2><a name="identification" id="identification">Server Identification</a></h2>
  39
  40
  41     <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>
  42
  43     <p>The <code class="directive"><a href="./mod/core.html#serveradmin">ServerAdmin</a></code> and
  44     <code class="directive"><a href="./mod/core.html#servertokens">ServerTokens</a></code> directives
  45     control what information about the server will be presented
  46     in server-generated documents such as error messages. The
  47     <code class="directive"><a href="./mod/core.html#servertokens">ServerTokens</a></code> directive
  48     sets the value of the Server HTTP response header field.</p>
  49
  50     <p>The <code class="directive"><a href="./mod/core.html#servername">ServerName</a></code>,
  51     <code class="directive"><a href="./mod/core.html#usecanonicalname">UseCanonicalName</a></code> and
  52     <code class="directive"><a href="./mod/core.html#usecanonicalphysicalport">UseCanonicalPhysicalPort</a></code>
  53     directives are used by the server to determine how to construct
  54     self-referential URLs. For example, when a client requests a
  55     directory, but does not include the trailing slash in the
  56     directory name, Apache must redirect the client to the full
  57     name including the trailing slash so that the client will
  58     correctly resolve relative references in the document.</p>
  59   </div><div class="top"><a href="#page-header"><img alt="top" src="./images/up.gif" /></a></div>
  60 <div class="section">
  61 <h2><a name="locations" id="locations">File Locations</a></h2>
  62
  63
  64     <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/mpm_common.html#lockfile">LockFile</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>
  65
  66     <p>These directives control the locations of the various files
  67     that Apache needs for proper operation. When the pathname used
  68     does not begin with a slash (/), the files are located relative
  69     to the <code class="directive"><a href="./mod/core.html#serverroot">ServerRoot</a></code>. Be careful
  70     about locating files in paths which are writable by non-root users.
  71     See the <a href="misc/security_tips.html#serverroot">security tips</a>
  72     documentation for more details.</p>
  73   </div><div class="top"><a href="#page-header"><img alt="top" src="./images/up.gif" /></a></div>
  74 <div class="section">
  75 <h2><a name="resource" id="resource">Limiting Resource Usage</a></h2>
  76
  77
  78     <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>
  79
  80     <p>The <code class="directive">LimitRequest</code>*
  81     directives are used to place limits on the amount of resources
  82     Apache will use in reading requests from clients. By limiting
  83     these values, some kinds of denial of service attacks can be
  84     mitigated.</p>
  85
  86     <p>The <code class="directive">RLimit</code>* directives
  87     are used to limit the amount of resources which can be used by
  88     processes forked off from the Apache children. In particular,
  89     this will control resources used by CGI scripts and SSI exec
  90     commands.</p>
  91
  92     <p>The <code class="directive"><a href="./mod/mpm_common.html#threadstacksize">ThreadStackSize</a></code>
  93     directive is used with some platforms to control the stack size.</p>
  94   </div></div>
  95 <div class="bottomlang">
  96 <p><span>Available Languages: </span><a href="./en/server-wide.html" title="English">&nbsp;en&nbsp;</a> |
  97 <a href="./fr/server-wide.html" hreflang="fr" rel="alternate" title="Français">&nbsp;fr&nbsp;</a> |
  98 <a href="./ja/server-wide.html" hreflang="ja" rel="alternate" title="Japanese">&nbsp;ja&nbsp;</a> |
  99 <a href="./ko/server-wide.html" hreflang="ko" rel="alternate" title="Korean">&nbsp;ko&nbsp;</a> |
 100 <a href="./tr/server-wide.html" hreflang="tr" rel="alternate" title="Türkçe">&nbsp;tr&nbsp;</a></p>
 101 </div><div id="footer">
 102 <p class="apache">Copyright 2009 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>
 103 <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>
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