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107 lines
6.2 KiB
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107 lines
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--><title>mod_status - Apache HTTP Server</title><link rel="stylesheet" type="text/css" href="../style/manual.css"/></head><body><blockquote><div align="center"><img src="../images/sub.gif" alt="[APACHE DOCUMENTATION]"/><h3>Apache HTTP Server Version 2.0</h3></div><h1 align="center">Apache Module mod_status</h1><table bgcolor="#cccccc" cellpadding="0" cellspacing="1"><tr><td><table bgcolor="#ffffff"><tr><td valign="top"><span class="help">Description:</span></td><td>Provides information on server activity and
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performance</td></tr><tr><td><a class="help" href="module-dict.html#Status">Status:</a></td><td>Base</td></tr><tr><td><a class="help" href="module-dict.html#ModuleIdentifier">Module Identifier:</a></td><td>status_module</td></tr></table></td></tr></table><h2>Summary</h2>
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<blockquote><table><tr><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></tr></table></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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<p>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.</p>
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<h2>Directives</h2><ul><li><a href="#extendedstatus">ExtendedStatus</a></li></ul><h2>Enabling Status Support</h2>
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<p>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</p>
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<blockquote><table cellpadding="10"><tr><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></tr></table></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></p>
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<blockquote><table><tr><td bgcolor="#e0e5f5"><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></td></tr></table></blockquote>
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<h2>Automatic Updates</h2>
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<p>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.</p>
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<h2>Machine Readable Status File</h2>
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<p>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>.</p>
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<blockquote><table><tr><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></tr></table></blockquote>
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<hr/><h2><a name="ExtendedStatus">ExtendedStatus</a> <a name="extendedstatus">Directive</a></h2><table bgcolor="#cccccc" border="0" cellspacing="0" cellpadding="1"><tr><td><table bgcolor="#ffffff"><tr><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></tr><tr><td><a class="help" href="directive-dict.html#Syntax">Syntax:</a></td><td>ExtendedStatus On|Off</td></tr><tr><td><a class="help" href="directive-dict.html#Default">Default:</a></td><td><code>ExtendedStatus Off</code></td></tr><tr><td><a class="help" href="directive-dict.html#Context">Context:</a></td><td>server config</td></tr><tr><td><a class="help" href="directive-dict.html#Status">Status:</a></td><td>Base</td></tr><tr><td><a class="help" href="directive-dict.html#Module">Module:</a></td><td>mod_status</td></tr><tr><td valign="top" align="left"><a class="help" href="directive-dict.html#Compatibility">Compatibility:</a></td><td>ExtendedStatus is only available in Apache 1.3.2 and
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later.</td></tr></table></td></tr></table>
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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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<hr/><h3 align="center">Apache HTTP Server Version 2.0</h3><a href="./"><img src="../images/index.gif" alt="Index"/></a><a href="../"><img src="../images/home.gif" alt="Home"/></a></blockquote></body></html> |