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_logio - 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_logio</h1> 26<div class="toplang"> 27<p><span>Available Languages: </span><a href="/en/mod/mod_logio.html" title="English"> en </a> | 28<a href="/ja/mod/mod_logio.html" hreflang="ja" rel="alternate" title="Japanese"> ja </a> | 29<a href="/ko/mod/mod_logio.html" hreflang="ko" rel="alternate" title="Korean"> ko </a> | 30<a href="/tr/mod/mod_logio.html" hreflang="tr" rel="alternate" title="T�rk�e"> tr </a></p> 31</div> 32<table class="module"><tr><th><a href="module-dict.html#Description">Description:</a></th><td>Logging of input and output bytes per request</td></tr> 33<tr><th><a href="module-dict.html#Status">Status:</a></th><td>Extension</td></tr> 34<tr><th><a href="module-dict.html#ModuleIdentifier">Module�Identifier:</a></th><td>logio_module</td></tr> 35<tr><th><a href="module-dict.html#SourceFile">Source�File:</a></th><td>mod_logio.c</td></tr></table> 36<h3>Summary</h3> 37 38 39 <p>This module provides the logging of input and output number of 40 bytes received/sent per request. The numbers reflect the actual bytes 41 as received on the network, which then takes into account the 42 headers and bodies of requests and responses. The counting is done 43 before SSL/TLS on input and after SSL/TLS on output, so the numbers 44 will correctly reflect any changes made by encryption.</p> 45 46 <p>This module requires <code class="module"><a href="/mod/mod_log_config.html">mod_log_config</a></code>.</p> 47 48 <div class="note">When KeepAlive connections are used with SSL, the overhead of the SSL 49 handshake is reflected in the byte count of the first request on the 50 connection. When per-directory SSL renegotiation occurs, the bytes are associated 51 with the request that triggered the renegotiation.</div> 52 53</div> 54<div id="quickview"><h3 class="directives">Directives</h3> 55<p>This module provides no 56 directives.</p> 57<h3>Topics</h3> 58<ul id="topics"> 59<li><img alt="" src="/images/down.gif" /> <a href="#formats">Custom Log Formats</a></li> 60</ul><h3>See also</h3> 61<ul class="seealso"> 62<li><code class="module"><a href="/mod/mod_log_config.html">mod_log_config</a></code></li> 63<li><a href="/logs.html">Apache Log Files</a></li> 64</ul><ul class="seealso"><li><a href="#comments_section">Comments</a></li></ul></div> 65<div class="top"><a href="#page-header"><img alt="top" src="/images/up.gif" /></a></div> 66<div class="section"> 67<h2><a name="formats" id="formats">Custom Log Formats</a></h2> 68 69 70 <p>This modules adds two new logging directives. The characteristics of the 71 request itself are logged by placing "<code>%</code>" directives in 72 the format string, which are replaced in the log file by the values as 73 follows:</p> 74 75 <table class="bordered"><tr class="header"><th>Format String</th> 76 <th>Description</th></tr> 77<tr><td><code>%...I</code></td> 78 <td>Bytes received, including request and headers, cannot be 79 zero.</td></tr> 80<tr class="odd"><td><code>%...O</code></td> 81 <td>Bytes sent, including headers, cannot be zero.</td></tr> 82</table> 83 84 <p>Usually, the functionality is used like this:</p> 85 86 <dl> 87 <dt>Combined I/O log format:</dt> 88 <dd><code>"%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" 89 \"%{User-agent}i\" %I %O"</code></dd> 90 </dl> 91</div> 92</div> 93<div class="bottomlang"> 94<p><span>Available Languages: </span><a href="/en/mod/mod_logio.html" title="English"> en </a> | 95<a href="/ja/mod/mod_logio.html" hreflang="ja" rel="alternate" title="Japanese"> ja </a> | 96<a href="/ko/mod/mod_logio.html" hreflang="ko" rel="alternate" title="Korean"> ko </a> | 97<a href="/tr/mod/mod_logio.html" hreflang="tr" rel="alternate" title="T�rk�e"> tr </a></p> 98</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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