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<a name="Logging-Statement"></a>
<div class="header">
<p>
Next: <a href="Debug-Statement.html#Debug-Statement" accesskey="n" rel="next">Debug Statement</a>, Previous: <a href="Include.html#Include" accesskey="p" rel="prev">Include</a>, Up: <a href="configuration.html#configuration" accesskey="u" rel="up">configuration</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Function-Index.html#Function-Index" title="Index" rel="index">Index</a>]</p>
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<hr>
<a name="Logging-Statement-1"></a>
<h4 class="subsection">2.2.3 Logging Statement</h4>
<a name="index-logging"></a>
<a name="Syntax-2"></a>
<h4 class="subheading">Syntax</h4>
<div class="example">
<pre class="example">logging {
  # <span class="roman">Send diagnostics to syslog.</span>
  syslog <var>boolean</var>;
  # <span class="roman">Print message severity levels.</span>
  print-severity <var>boolean</var>;
  # <span class="roman">Output only messages with a severity equal to or</span>
  # <span class="roman">greater than this one.</span>
  severity <var>string</var>;
  # <span class="roman">Set syslog facility.</span>
  facility <var>name</var>;
  # <span class="roman">Tag syslog messages with this string.</span>
  tag <var>text</var>;
}
</pre></div>

<a name="Description"></a>
<h4 class="subheading">Description</h4>
<p>The <code>logging</code> block statement configures where the diagnostic
output goes and how verbose it is.
</p>
<dl>
<dt><a name="index-syslog"></a>Configuration: <strong>syslog</strong> <em>bool</em></dt>
<dd><p>If &lsquo;<samp>syslog</samp>&rsquo; is set to &lsquo;<samp>yes</samp>&rsquo;, the diagnostics will go to
syslog.  Otherwise, it goes to the standard error.
</p></dd></dl>

<p>The default syslog facility is determined at compile time, it can be inspected
using the following command (see <a href="mu-info.html#mu-info">mu info</a>):
</p>
<div class="example">
<pre class="example">$ mu info log_facility
</pre></div>

<a name="syslog-facility"></a><dl>
<dt><a name="index-facility"></a>Configuration: <strong>facility</strong> <em>name</em></dt>
<dd><p>Use syslog facility <var>name</var>.  Valid argument values are: &lsquo;<samp>user</samp>&rsquo;,
&lsquo;<samp>daemon</samp>&rsquo;, &lsquo;<samp>auth</samp>&rsquo;, &lsquo;<samp>authpriv</samp>&rsquo;, &lsquo;<samp>mail</samp>&rsquo;, &lsquo;<samp>cron</samp>&rsquo;,
&lsquo;<samp>local0</samp>&rsquo; through &lsquo;<samp>local7</samp>&rsquo; (all names case-insensitive), or
a facility number.
</p></dd></dl>

<dl>
<dt><a name="index-tag"></a>Configuration: <strong>tag</strong> <em>text</em></dt>
<dd><p>Tag syslog messages with <var>text</var>.  By default, program name is used
as syslog tag.
</p></dd></dl>

<dl>
<dt><a name="index-print_002dseverity"></a>Configuration: <strong>print-severity</strong> <em>bool</em></dt>
<dd><p>Print Mailutils severity name before each message.
</p></dd></dl>

<dl>
<dt><a name="index-severity"></a>Configuration: <strong>severity</strong> <em>name</em></dt>
<dd><p>Output only messages with a severity equal to or greater than this
one.  Valid arguments are: &lsquo;<samp>debug</samp>&rsquo;, &lsquo;<samp>info</samp>&rsquo;, &lsquo;<samp>notice</samp>&rsquo;,
&lsquo;<samp>warning</samp>&rsquo;, &lsquo;<samp>error</samp>&rsquo;, &lsquo;<samp>crit</samp>&rsquo;, &lsquo;<samp>alert</samp>&rsquo;, &lsquo;<samp>emerg</samp>&rsquo;,
</p></dd></dl>




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