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47feede6777f217fb2e2dff71635da04898e0077nd<title>mod_journald - Apache HTTP Server Version 2.5</title>
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47feede6777f217fb2e2dff71635da04898e0077nd<div id="page-content">
47feede6777f217fb2e2dff71635da04898e0077nd<div id="preamble"><h1>Apache Module mod_journald</h1>
47feede6777f217fb2e2dff71635da04898e0077nd<div class="toplang">
f086b4b402fa9a2fefc7dda85de2a3cc1cd0a654rjung<p><span>Available Languages: </span><a href="/en/mod/mod_journald.html" title="English">&nbsp;en&nbsp;</a></p>
47feede6777f217fb2e2dff71635da04898e0077nd</div>
707c2713ba8f1aa11c1f22f69d3ec73522054b9fcovener<table class="module"><tr><th><a href="module-dict.html#Description">Description:</a></th><td>Provides "journald" ErrorLog provider</td></tr>
707c2713ba8f1aa11c1f22f69d3ec73522054b9fcovener<tr><th><a href="module-dict.html#Status">Status:</a></th><td>Extension</td></tr>
47feede6777f217fb2e2dff71635da04898e0077nd<tr><th><a href="module-dict.html#ModuleIdentifier">Module�Identifier:</a></th><td>journald_module</td></tr>
47feede6777f217fb2e2dff71635da04898e0077nd<tr><th><a href="module-dict.html#SourceFile">Source�File:</a></th><td>mod_journald.c</td></tr></table>
47feede6777f217fb2e2dff71635da04898e0077nd<h3>Summary</h3>
47feede6777f217fb2e2dff71635da04898e0077nd
47feede6777f217fb2e2dff71635da04898e0077nd    <p>This module provides "journald" ErrorLog provider. It allows logging
707c2713ba8f1aa11c1f22f69d3ec73522054b9fcovener    error messages and CustomLog/TransferLog via systemd-journald(8).</p>
5cd0fbce99a53ae48c3f502d7663e55f01b4e0a0humbedooh</div>
707c2713ba8f1aa11c1f22f69d3ec73522054b9fcovener<div id="quickview"><h3>Topics</h3>
707c2713ba8f1aa11c1f22f69d3ec73522054b9fcovener<ul id="topics">
707c2713ba8f1aa11c1f22f69d3ec73522054b9fcovener<li><img alt="" src="/images/down.gif" /> <a href="#structured">Structured logging</a></li>
707c2713ba8f1aa11c1f22f69d3ec73522054b9fcovener<li><img alt="" src="/images/down.gif" /> <a href="#examples">Examples</a></li>
707c2713ba8f1aa11c1f22f69d3ec73522054b9fcovener</ul><h3 class="directives">Directives</h3>
47feede6777f217fb2e2dff71635da04898e0077nd<ul id="toc">
47feede6777f217fb2e2dff71635da04898e0077nd<li><img alt="" src="/images/down.gif" /> <a href="#journaldcustomlog">JournaldCustomLog</a></li>
47feede6777f217fb2e2dff71635da04898e0077nd</ul>
47feede6777f217fb2e2dff71635da04898e0077nd<ul class="seealso"><li><a href="#comments_section">Comments</a></li></ul></div>
47feede6777f217fb2e2dff71635da04898e0077nd<div class="top"><a href="#page-header"><img alt="top" src="/images/up.gif" /></a></div>
47feede6777f217fb2e2dff71635da04898e0077nd<div class="section">
47feede6777f217fb2e2dff71635da04898e0077nd<h2><a name="structured" id="structured">Structured logging</a></h2>
47feede6777f217fb2e2dff71635da04898e0077nd
47feede6777f217fb2e2dff71635da04898e0077nd    <p>Systemd-journald allows structured logging and therefore it is
47feede6777f217fb2e2dff71635da04898e0077nd    possible to filter logged messages according to various variables.
47feede6777f217fb2e2dff71635da04898e0077nd    Currently supported variables are:
30471a4650391f57975f60bbb6e4a90be7b284bfhumbedooh    </p>
47feede6777f217fb2e2dff71635da04898e0077nd    <dl>
47feede6777f217fb2e2dff71635da04898e0077nd      <dt><code>LOG</code></dt>
47feede6777f217fb2e2dff71635da04898e0077nd      <dd>The name of the log. For ErrorLog, the value is "error_log".
47feede6777f217fb2e2dff71635da04898e0077nd          For CustomLog or TransferLog, the value is the first argument of
47feede6777f217fb2e2dff71635da04898e0077nd          these directives.</dd>
47feede6777f217fb2e2dff71635da04898e0077nd      <dt><code>REQUEST_HOSTNAME</code></dt>
47feede6777f217fb2e2dff71635da04898e0077nd      <dd>Host, as set by full URI or Host: header in the request.</dd>
47feede6777f217fb2e2dff71635da04898e0077nd      <dt><code>REQUEST_USER</code></dt>
707c2713ba8f1aa11c1f22f69d3ec73522054b9fcovener      <dd>If an authentication check was made, this gets set to the user
47feede6777f217fb2e2dff71635da04898e0077nd          name.</dd>
47feede6777f217fb2e2dff71635da04898e0077nd      <dt><code>REQUEST_USERAGENT_IP</code></dt>
707c2713ba8f1aa11c1f22f69d3ec73522054b9fcovener      <dd>The address that originated the request.</dd>
707c2713ba8f1aa11c1f22f69d3ec73522054b9fcovener      <dt><code>REQUEST_URI</code></dt>
707c2713ba8f1aa11c1f22f69d3ec73522054b9fcovener      <dd>The path portion of the URI, or "/" if no path provided.</dd>
47feede6777f217fb2e2dff71635da04898e0077nd      <dt><code>SERVER_HOSTNAME</code></dt>
47feede6777f217fb2e2dff71635da04898e0077nd      <dd>The hostname of server for which the log message has been
47feede6777f217fb2e2dff71635da04898e0077nd          generated.</dd>
47feede6777f217fb2e2dff71635da04898e0077nd    </dl>
f086b4b402fa9a2fefc7dda85de2a3cc1cd0a654rjung
727872d18412fc021f03969b8641810d8896820bhumbedooh    <p>These variables can be for example used to show only log messages
0d0ba3a410038e179b695446bb149cce6264e0abnd    for particular URI using <code>journalctl</code>:
727872d18412fc021f03969b8641810d8896820bhumbedooh    </p>
cc7e1025de9ac63bd4db6fe7f71c158b2cf09fe4humbedooh
0d0ba3a410038e179b695446bb149cce6264e0abnd    <pre class="prettyprint lang-">journalctl REQUEST_URI=/index.html -a</pre>
cc7e1025de9ac63bd4db6fe7f71c158b2cf09fe4humbedooh
727872d18412fc021f03969b8641810d8896820bhumbedooh
0d0ba3a410038e179b695446bb149cce6264e0abnd    <p>For more examples, see systemd-journalctl documentation.</p>
0d0ba3a410038e179b695446bb149cce6264e0abnd</div><div class="top"><a href="#page-header"><img alt="top" src="/images/up.gif" /></a></div>
0d0ba3a410038e179b695446bb149cce6264e0abnd<div class="section">
ac082aefa89416cbdc9a1836eaf3bed9698201c8humbedooh<h2><a name="examples" id="examples">Examples</a></h2>
0d0ba3a410038e179b695446bb149cce6264e0abnd
0d0ba3a410038e179b695446bb149cce6264e0abnd
0d0ba3a410038e179b695446bb149cce6264e0abnd    <p>Using <code>journald</code> in ErrorLog directive (see <code class="module"><a href="/mod/core.html">core</a></code>)
727872d18412fc021f03969b8641810d8896820bhumbedooh    instead of a filename enables logging via systemd-journald(8)
0d0ba3a410038e179b695446bb149cce6264e0abnd    if the system supports it.
0d0ba3a410038e179b695446bb149cce6264e0abnd    </p>
30471a4650391f57975f60bbb6e4a90be7b284bfhumbedooh
1a1356f375e36db7bee379ea0684ab389579f798rbowen    <pre class="prettyprint lang-config">ErrorLog journald</pre>
af33a4994ae2ff15bc67d19ff1a7feb906745bf8rbowen
0d0ba3a410038e179b695446bb149cce6264e0abnd
7fec19672a491661b2fe4b29f685bc7f4efa64d4nd</div>
7fec19672a491661b2fe4b29f685bc7f4efa64d4nd<div class="top"><a href="#page-header"><img alt="top" src="/images/up.gif" /></a></div>
7fec19672a491661b2fe4b29f685bc7f4efa64d4nd<div class="directive-section"><h2><a name="JournaldCustomLog" id="JournaldCustomLog">JournaldCustomLog</a> <a name="journaldcustomlog" id="journaldcustomlog">Directive</a></h2>
47feede6777f217fb2e2dff71635da04898e0077nd<table class="directive">
<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Enable logging of CustomLog/TransferLog to systemd-journald</td></tr>
<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>JournaldCustomLog on|off</code></td></tr>
<tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>JournaldCustomLog 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>Extension</td></tr>
<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_journald</td></tr>
</table>

    <p>The <code class="directive">JournaldCustomLog</code> directive enables logging
    of CustomLog and TransferLog messages to systemd-journald.
    </p>

    <div class="warning"><h3>Performance warning</h3><p>
    Currently, systemd-journald is not designed for high-throughput logging
    and logging access_log to systemd-journald could decrease the performance
    a lot.
    </p></div>

</div>
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