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>mod_ident - 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.js" type="text/javascript"> 13</script> 14 15<link href="/images/favicon.ico" rel="shortcut icon" /></head> 16<body> 17<div id="page-header"> 18<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> 19<p class="apache">Apache HTTP Server Version 2.2</p> 20<img alt="" src="/images/feather.gif" /></div> 21<div class="up"><a href="./"><img title="<-" alt="<-" src="/images/left.gif" /></a></div> 22<div id="path"> 23<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 2.2</a> > <a href="./">Modules</a></div> 24<div id="page-content"> 25<div id="preamble"><h1>Apache Module mod_ident</h1> 26<div class="toplang"> 27<p><span>Available Languages: </span><a href="/en/mod/mod_ident.html" title="English"> en </a> | 28<a href="/ja/mod/mod_ident.html" hreflang="ja" rel="alternate" title="Japanese"> ja </a> | 29<a href="/ko/mod/mod_ident.html" hreflang="ko" rel="alternate" title="Korean"> ko </a></p> 30</div> 31<table class="module"><tr><th><a href="module-dict.html#Description">Description:</a></th><td>RFC 1413 ident lookups</td></tr> 32<tr><th><a href="module-dict.html#Status">Status:</a></th><td>Extension</td></tr> 33<tr><th><a href="module-dict.html#ModuleIdentifier">Module�Identifier:</a></th><td>ident_module</td></tr> 34<tr><th><a href="module-dict.html#SourceFile">Source�File:</a></th><td>mod_ident.c</td></tr> 35<tr><th><a href="module-dict.html#Compatibility">Compatibility:</a></th><td>Available in Apache 2.1 and later</td></tr></table> 36<h3>Summary</h3> 37 38 <p>This module queries an <a href="http://www.ietf.org/rfc/rfc1413.txt">RFC 1413</a> compatible daemon on a remote host to look up the owner of 39 a connection.</p> 40</div> 41<div id="quickview"><h3 class="directives">Directives</h3> 42<ul id="toc"> 43<li><img alt="" src="/images/down.gif" /> <a href="#identitycheck">IdentityCheck</a></li> 44<li><img alt="" src="/images/down.gif" /> <a href="#identitychecktimeout">IdentityCheckTimeout</a></li> 45</ul> 46<h3>See also</h3> 47<ul class="seealso"> 48<li><code class="module"><a href="/mod/mod_log_config.html">mod_log_config</a></code></li> 49</ul><ul class="seealso"><li><a href="#comments_section">Comments</a></li></ul></div> 50 51<div class="top"><a href="#page-header"><img alt="top" src="/images/up.gif" /></a></div> 52<div class="directive-section"><h2><a name="IdentityCheck" id="IdentityCheck">IdentityCheck</a> <a name="identitycheck" id="identitycheck">Directive</a></h2> 53<table class="directive"> 54<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Enables logging of the RFC 1413 identity of the remote 55user</td></tr> 56<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>IdentityCheck On|Off</code></td></tr> 57<tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>IdentityCheck Off</code></td></tr> 58<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host, directory</td></tr> 59<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Extension</td></tr> 60<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_ident</td></tr> 61<tr><th><a href="directive-dict.html#Compatibility">Compatibility:</a></th><td>Moved out of core in Apache 2.1</td></tr> 62</table> 63 <p>This directive enables <a href="http://www.ietf.org/rfc/rfc1413.txt">RFC 1413</a>-compliant logging of the remote user name for each 64 connection, where the client machine runs identd or something similar. 65 This information is logged in the access log using the <code>%...l</code> 66 <a href="mod_log_config.html#formats">format string</a>.</p> 67 68 <div class="note"> 69 The information should not be trusted in any way except for 70 rudimentary usage tracking. 71 </div> 72 73 <p>Note that this can cause serious latency problems accessing 74 your server since every request requires one of these lookups 75 to be performed. When firewalls or proxy servers are involved, 76 each lookup might possibly fail and add a latency duration as 77 defined by the <code class="directive"><a href="#identitychecktimeout">IdentityCheckTimeout</a></code> directive to each hit. So in 78 general this is not very useful on public servers accessible from 79 the Internet.</p> 80 81</div> 82<div class="top"><a href="#page-header"><img alt="top" src="/images/up.gif" /></a></div> 83<div class="directive-section"><h2><a name="IdentityCheckTimeout" id="IdentityCheckTimeout">IdentityCheckTimeout</a> <a name="identitychecktimeout" id="identitychecktimeout">Directive</a></h2> 84<table class="directive"> 85<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Determines the timeout duration for ident requests</td></tr> 86<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>IdentityCheckTimeout <var>seconds</var></code></td></tr> 87<tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>IdentityCheckTimeout 30</code></td></tr> 88<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host, directory</td></tr> 89<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Extension</td></tr> 90<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_ident</td></tr> 91</table> 92 <p>This directive specifies the timeout duration of an ident 93 request. The default value of 30 seconds is recommended by <a href="http://www.ietf.org/rfc/rfc1413.txt">RFC 1413</a>, mainly because 94 of possible network latency. However, you may want to adjust the 95 timeout value according to your local network speed.</p> 96 97</div> 98</div> 99<div class="bottomlang"> 100<p><span>Available Languages: </span><a href="/en/mod/mod_ident.html" title="English"> en </a> | 101<a href="/ja/mod/mod_ident.html" hreflang="ja" rel="alternate" title="Japanese"> ja </a> | 102<a href="/ko/mod/mod_ident.html" hreflang="ko" rel="alternate" title="Korean"> ko </a></p> 103</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. 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