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<title>mod_status - Apache HTTP Server</title>
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<div id="preamble"><h1>Apache Module mod_status</h1>
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<p><span>Available Languages: </span><a href="../en/mod/mod_status.html" title="English">&nbsp;en&nbsp;</a> |
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<table class="module"><tr><th><a href="module-dict.html#Description">Description:</a></th><td>Provides information on server activity and
performance</td></tr>
<tr><th><a href="module-dict.html#Status">Status:</a></th><td>Base</td></tr>
<tr><th><a href="module-dict.html#ModuleIdentifier">Module Identifier:</a></th><td>status_module</td></tr>
<tr><th><a href="module-dict.html#SourceFile">Source File:</a></th><td>mod_status.c</td></tr></table>
<h3>Summary</h3>

    <p>The Status module allows a server administrator to find out
    how well their server is performing. A HTML page is presented
    that gives the current server statistics in an easily readable
    form. If required this page can be made to automatically
    refresh (given a compatible browser). Another page gives a
    simple machine-readable list of the current server state.</p>

    <p>The details given are:</p>

    <ul>
      <li>The number of worker serving requests</li>

      <li>The number of idle worker</li>

      <li>The status of each worker, the number of requests that
      worker has performed and the total number of bytes served by
      the worker (*)</li>

      <li>A total number of accesses and byte count served (*)</li>

      <li>The time the server was started/restarted and the time it
      has been running for</li>

      <li>Averages giving the number of requests per second, the
      number of bytes served per second and the average number of
      bytes per request (*)</li>

      <li>The current percentage CPU used by each worker and in
      total by Apache (*)</li>

      <li>The current hosts and requests being processed (*)</li>
    </ul>

    <p>A compile-time option must be used to display the details
    marked "(*)" as the instrumentation required for obtaining
    these statistics does not exist within standard Apache.</p>
</div>
<div id="quickview"><h3 class="directives">Directives</h3>
<ul id="toc">
<li><img alt="" src="../images/down.gif" /> <a href="#extendedstatus">ExtendedStatus</a></li>
</ul>
<h3>Topics</h3>
<ul id="topics">
<li><img alt="" src="../images/down.gif" /> <a href="#enable">Enabling Status Support</a></li>
<li><img alt="" src="../images/down.gif" /> <a href="#autoupdate">Automatic Updates</a></li>
<li><img alt="" src="../images/down.gif" /> <a href="#machinereadable">Machine Readable Status File</a></li>
</ul></div>
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<div class="section">
<h2><a name="enable" id="enable">Enabling Status Support</a></h2>
    

    <p>To enable status reports only for browsers from the foo.com
    domain add this code to your <code>httpd.conf</code>
    configuration file</p>
<div class="example"><p><code>
    &lt;Location /server-status&gt;<br />
    SetHandler server-status<br />
<br />
    Order Deny,Allow<br />
    Deny from all<br />
    Allow from .foo.com<br />
    &lt;/Location&gt;
</code></p></div>

    <p>You can now access server statistics by using a Web browser
    to access the page
    <code>http://your.server.name/server-status</code></p>
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<div class="section">
<h2><a name="autoupdate" id="autoupdate">Automatic Updates</a></h2>

    
    <p>You can get the status page to update itself automatically if
    you have a browser that supports "refresh". Access the page
    <code>http://your.server.name/server-status?refresh=N</code> to
    refresh the page every N seconds.</p>

</div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
<div class="section">
<h2><a name="machinereadable" id="machinereadable">Machine Readable Status File</a></h2>

    
    <p>A machine-readable version of the status file is available by
    accessing the page
    <code>http://your.server.name/server-status?auto</code>. This
    is useful when automatically run, see the Perl program in the
    <code>/support</code> directory of Apache,
    <code>log_server_status</code>.</p>

    <div class="note">
      <strong>It should be noted that if <code class="module"><a href="../mod/mod_status.html">mod_status</a></code> is
      compiled into the server, its handler capability is available
      in <em>all</em> configuration files, including
      <em>per</em>-directory files (<em>e.g.</em>,
      <code>.htaccess</code>). This may have security-related
      ramifications for your site.</strong>
    </div>

</div>
<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
<div class="directive-section"><h2><a name="ExtendedStatus" id="ExtendedStatus">ExtendedStatus</a> <a name="extendedstatus" id="extendedstatus">Directive</a></h2>
<table class="directive">
<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Keep track of extended status information for each 
request</td></tr>
<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>ExtendedStatus On|Off</code></td></tr>
<tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>ExtendedStatus Off</code></td></tr>
<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config</td></tr>
<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Base</td></tr>
<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_status</td></tr>
<tr><th><a href="directive-dict.html#Compatibility">Compatibility:</a></th><td>ExtendedStatus is only available in Apache 1.3.2 and 
later.</td></tr>
</table>
    <p>This setting applies to the entire server, and cannot be
    enabled or disabled on a virtualhost-by-virtualhost basis.
    The collection of extended status information can slow down
    the server.</p>

</div>
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