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>suexec - Switch user before executing external programs - 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> > <a href="./">Programs</a></div><div id="page-content"><div id="preamble"><h1>suexec - Switch user before executing external programs</h1> 23<div class="toplang"> 24<p><span>Available Languages: </span><a href="/en/programs/suexec.html" title="English"> en </a> | 25<a href="/ko/programs/suexec.html" hreflang="ko" rel="alternate" title="Korean"> ko </a> | 26<a href="/tr/programs/suexec.html" hreflang="tr" rel="alternate" title="T�rk�e"> tr </a></p> 27</div> 28 29 <p><code>suexec</code> is used by the Apache HTTP Server to switch 30 to another user before executing CGI programs. In order to achieve this, 31 it must run as <code>root</code>. Since the HTTP daemon normally doesn't 32 run as <code>root</code>, the <code>suexec</code> executable needs the 33 setuid bit set and must be owned by <code>root</code>. It should never be 34 writable for any other person than <code>root</code>.</p> 35 36 <p>For further information about the concepts and the security model 37 of suexec please refer to the suexec documentation (<a href="http://httpd.apache.org/docs/2.4/suexec.html">http://httpd.apache.org/docs/2.4/suexec.html</a>).</p> 38</div> 39<div id="quickview"><ul id="toc"><li><img alt="" src="/images/down.gif" /> <a href="#synopsis">Synopsis</a></li> 40<li><img alt="" src="/images/down.gif" /> <a href="#options">Options</a></li> 41</ul><ul class="seealso"><li><a href="#comments_section">Comments</a></li></ul></div> 42<div class="top"><a href="#page-header"><img alt="top" src="/images/up.gif" /></a></div> 43<div class="section"> 44<h2><a name="synopsis" id="synopsis">Synopsis</a></h2> 45 <p><code><strong>suexec</strong> -<strong>V</strong></code></p> 46</div><div class="top"><a href="#page-header"><img alt="top" src="/images/up.gif" /></a></div> 47<div class="section"> 48<h2><a name="options" id="options">Options</a></h2> 49 50<dl> 51<dt><code>-V</code></dt> 52 53<dd>If you are <code>root</code>, this option displays the compile options of 54<code>suexec</code>. For security reasons all configuration options are 55changeable only at compile time.</dd> 56 57</dl> 58</div></div> 59<div class="bottomlang"> 60<p><span>Available Languages: </span><a href="/en/programs/suexec.html" title="English"> en </a> | 61<a href="/ko/programs/suexec.html" hreflang="ko" rel="alternate" title="Korean"> ko </a> | 62<a href="/tr/programs/suexec.html" hreflang="tr" rel="alternate" title="T�rk�e"> tr </a></p> 63</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. 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