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241 lines
6.6 KiB
HTML
241 lines
6.6 KiB
HTML
<html>
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<META http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
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<title>mod_status - Apache HTTP Server</title>
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<link href="../style/manual.css" type="text/css" rel="stylesheet">
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</head>
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<body>
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<blockquote>
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<div align="center">
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<img alt="[APACHE DOCUMENTATION]" src="../images/sub.gif"><h3>Apache HTTP Server Version 2.0</h3>
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</div>
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<h1 align="center">Apache Module mod_status</h1>
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<table cellspacing="1" cellpadding="0" bgcolor="#cccccc">
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<tr>
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<td>
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<table bgcolor="#ffffff">
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<tr>
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<td><span class="help">Description:</span></td><td>
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<description>This module provides information on server activity and
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performance.</description>
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</td>
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</tr>
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<tr>
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<td><a href="module-dict.html#Status" class="help">Status:</a></td><td>Base</td>
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</tr>
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<tr>
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<td><a href="module-dict.html#ModuleIdentifier" class="help">Module Identifier:</a></td><td>status_module</td>
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</tr>
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<tr>
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<td><a href="module-dict.html#Compatibility" class="help">Compatibility:</a></td><td>
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<compatibility>Available in Apache 1.1 and later</compatibility>
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</td>
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</tr>
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</table>
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</td>
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</tr>
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</table>
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<h2>Summary</h2>
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<summary>
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<blockquote>
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<table>
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<tr>
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<td bgcolor="#e0e5f5">
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<strong>Warning:</strong> This document has not been updated
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to take into account changes made in the 2.0 version of the
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Apache HTTP Server. Some of the information may still be
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relevant, but please use it with care.
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</td>
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</tr>
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</table>
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</blockquote>
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<p>The Status module allows a server administrator to find out
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how well their server is performing. A HTML page is presented
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that gives the current server statistics in an easily readable
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form. If required this page can be made to automatically
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refresh (given a compatible browser). Another page gives a
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simple machine-readable list of the current server state.</p>
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<p>The details given are:</p>
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<ul>
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<li>The number of children serving requests</li>
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<li>The number of idle children</li>
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<li>The status of each child, the number of requests that
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child has performed and the total number of bytes served by
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the child (*)</li>
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<li>A total number of accesses and byte count served (*)</li>
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<li>The time the server was started/restarted and the time it
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has been running for</li>
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<li>Averages giving the number of requests per second, the
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number of bytes served per second and the average number of
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bytes per request (*)</li>
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<li>The current percentage CPU used by each child and in
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total by Apache (*)</li>
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<li>The current hosts and requests being processed (*)</li>
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</ul>
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A compile-time option must be used to display the details
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marked "(*)" as the instrumentation required for obtaining
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these statistics does not exist within standard Apache.
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</summary>
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<h2>Directives</h2>
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<ul>
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<li>
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<a href="#extendedstatus">ExtendedStatus</a>
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</li>
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</ul>
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<h2>Enabling Status Support</h2>
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To enable status reports only for browsers from the foo.com
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domain add this code to your <code>httpd.conf</code>
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configuration file
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<blockquote>
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<table cellpadding="10">
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<tr>
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<td bgcolor="#eeeeee"><code>
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<Location /server-status><br>
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SetHandler server-status<br>
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<br>
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Order Deny,Allow<br>
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Deny from all<br>
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Allow from .foo.com<br>
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</Location>
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</code></td>
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</tr>
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</table>
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</blockquote>
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<p>You can now access server statistics by using a Web browser
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to access the page
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<code>http://your.server.name/server-status</code>
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</p>
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<blockquote>
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<table>
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<tr>
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<td bgcolor="#e0e5f5">
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<p>Note that <code><a href="mod_status.html">mod_status</a></code> will only work
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when you are running Apache in <a href="core.html#servertype">standalone</a> mode and not
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<a href="core.html#servertype">inetd</a> mode.</p>
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</td>
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</tr>
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</table>
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</blockquote>
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<h2>Automatic Updates</h2>
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You can get the status page to update itself automatically if
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you have a browser that supports "refresh". Access the page
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<code>http://your.server.name/server-status?refresh=N</code> to
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refresh the page every N seconds.
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<h2>Machine Readable Status File</h2>
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A machine-readable version of the status file is available by
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accessing the page
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<code>http://your.server.name/server-status?auto</code>. This
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is useful when automatically run, see the Perl program in the
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<code>/support</code> directory of Apache,
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<code>log_server_status</code>.
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<blockquote>
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<table>
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<tr>
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<td bgcolor="#e0e5f5">
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<strong>It should be noted that if <code><a href="mod_status.html">mod_status</a></code> is
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compiled into the server, its handler capability is available
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in <em>all</em> configuration files, including
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<em>per</em>-directory files (<em>e.g.</em>,
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<code>.htaccess</code>). This may have security-related
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ramifications for your site.</strong>
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</td>
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</tr>
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</table>
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</blockquote>
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<hr>
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<h2>
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<a name="ExtendedStatus">ExtendedStatus</a> <a name="extendedstatus">Directive</a>
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</h2>
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<table cellpadding="1" cellspacing="0" border="0" bgcolor="#cccccc">
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<tr>
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<td>
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<table width="100%" bgcolor="#ffffff">
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<tr>
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<td><strong>Description: </strong></td><td>This directive controls whether the server keeps track of
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extended status information for each request. This is only
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useful if the status module is enabled on the server.</td>
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</tr>
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<tr>
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<td><a href="directive-dict.html#Syntax" class="help">Syntax:</a></td><td>
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<syntax>ExtendedStatus On|Off</syntax>
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</td>
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</tr>
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<tr>
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<td><a href="directive-dict.html#Default" class="help">Default:</a></td><td><code>ExtendedStatus Off</code></td>
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</tr>
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<tr>
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<td><a href="directive-dict.html#Context" class="help">Context:</a></td><td>server config</td>
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</tr>
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<tr>
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<td><a href="directive-dict.html#Status" class="help">Status:</a></td><td>Base</td>
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</tr>
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<tr>
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<td><a href="directive-dict.html#Module" class="help">Module:</a></td><td>mod_status</td>
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</tr>
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<tr>
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<td><a href="directive-dict.html#Compatibility" class="help">Compatibility:</a></td><td>ExtendedStatus is only available in Apache 1.3.2 and
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later.</td>
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</tr>
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</table>
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</td>
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</tr>
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</table>
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<usage>
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<p>This setting applies to the entire server, and cannot be
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enabled or disabled on a virtualhost-by-virtualhost basis.</p>
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</usage>
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<hr>
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<h3 align="center">Apache HTTP Server Version 2.0</h3>
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<a href="./"><img alt="Index" src="../images/index.gif"></a><a href="../"><img alt="Home" src="../images/home.gif"></a>
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</blockquote>
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</body>
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</html>
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