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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 2.1</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-project/">Documentation</a> &gt; <a href="./">Version 2.1</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="./ja/server-wide.html" hreflang="ja" rel="alternate" title="Japanese">&nbsp;ja&nbsp;</a> |
  23 <a href="./ko/server-wide.html" hreflang="ko" rel="alternate" title="Korean">&nbsp;ko&nbsp;</a></p>
  24 </div>
  25
  26 <p>This document explains some of the directives provided by
  27 the <code class="module"><a href="./mod/core.html">core</a></code> server which are used to configure
  28 the basic operations of the server.</p>
  29 </div>
  30 <div id="quickview"><ul id="toc"><li><img alt="" src="./images/down.gif" /> <a href="#identification">Server Identification</a></li>
  31 <li><img alt="" src="./images/down.gif" /> <a href="#locations">File Locations</a></li>
  32 <li><img alt="" src="./images/down.gif" /> <a href="#resource">Limiting Resource Usage</a></li>
  33 </ul></div>
  34 <div class="top"><a href="#page-header"><img alt="top" src="./images/up.gif" /></a></div>
  35 <div class="section">
  36 <h2><a name="identification" id="identification">Server Identification</a></h2>
  37
  38
  39     <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></ul></td></tr></table>
  40
  41     <p>The <code class="directive"><a href="./mod/core.html#serveradmin">ServerAdmin</a></code> and
  42     <code class="directive"><a href="./mod/core.html#servertokens">ServerTokens</a></code> directives
  43     control what information about the server will be presented
  44     in server-generated documents such as error messages. The
  45     <code class="directive"><a href="./mod/core.html#servertokens">ServerTokens</a></code> directive
  46     sets the value of the Server HTTP response header field.</p>
  47
  48     <p>The <code class="directive"><a href="./mod/core.html#servername">ServerName</a></code> and
  49     <code class="directive"><a href="./mod/core.html#usecanonicalname">UseCanonicalName</a></code>
  50     directives are used by the server to determine how to construct
  51     self-referential URLs. For example, when a client requests a
  52     directory, but does not include the trailing slash in the
  53     directory name, Apache must redirect the client to the full
  54     name including the trailing slash so that the client will
  55     correctly resolve relative references in the document.</p>
  56   </div><div class="top"><a href="#page-header"><img alt="top" src="./images/up.gif" /></a></div>
  57 <div class="section">
  58 <h2><a name="locations" id="locations">File Locations</a></h2>
  59
  60
  61     <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>
  62
  63     <p>These directives control the locations of the various files
  64     that Apache needs for proper operation. When the pathname used
  65     does not begin with a slash (/), the files are located relative
  66     to the <code class="directive"><a href="./mod/core.html#serverroot">ServerRoot</a></code>. Be careful
  67     about locating files in paths which are writable by non-root users.
  68     See the <a href="misc/security_tips.html#serverroot">security tips</a>
  69     documentation for more details.</p>
  70   </div><div class="top"><a href="#page-header"><img alt="top" src="./images/up.gif" /></a></div>
  71 <div class="section">
  72 <h2><a name="resource" id="resource">Limiting Resource Usage</a></h2>
  73
  74
  75     <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>
  76
  77     <p>The <code class="directive">LimitRequest</code>*
  78     directives are used to place limits on the amount of resources
  79     Apache will use in reading requests from clients. By limiting
  80     these values, some kinds of denial of service attacks can be
  81     mitigated.</p>
  82
  83     <p>The <code class="directive">RLimit</code>* directives
  84     are used to limit the amount of resources which can be used by
  85     processes forked off from the Apache children. In particular,
  86     this will control resources used by CGI scripts and SSI exec
  87     commands.</p>
  88
  89     <p>The <code class="directive"><a href="./mod/mpm_common.html#threadstacksize">ThreadStackSize</a></code>
  90     directive is used with some platforms to control the stack size.</p>
  91   </div></div>
  92 <div class="bottomlang">
  93 <p><span>Available Languages: </span><a href="./en/server-wide.html" title="English">&nbsp;en&nbsp;</a> |
  94 <a href="./ja/server-wide.html" hreflang="ja" rel="alternate" title="Japanese">&nbsp;ja&nbsp;</a> |
  95 <a href="./ko/server-wide.html" hreflang="ko" rel="alternate" title="Korean">&nbsp;ko&nbsp;</a></p>
  96 </div><div id="footer">
  97 <p class="apache">Copyright 1995-2005 The Apache Software Foundation or its licensors, as applicable.<br />Licensed under the <a href="http://www.apache.org/licenses/LICENSE-2.0">Apache License, Version 2.0</a>.</p>
  98 <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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