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<title>rsyslog features</title>
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<h1>RSyslog - Features</h1>
<p><b>This page lists both current features as well as those being considered
for future versions of rsyslog.</b> If you think a feature is missing, drop
<a href="mailto:rgerhards@adiscon.com">Rainer</a> a note. Rsyslog is a vital
project. Features are added each few days. If you would like to keep up of what
is going on, you can also subscribe to the <a href="http://lists.adiscon.net/mailman/listinfo/rsyslog">rsyslog mailing list</a>.
</p>
<h2>Current Features</h2>
<ul>
<li>native support for <a href="rsyslog_mysql.html">writing to MySQL databases</a><li>support for (plain) tcp
based syslog - much better reliability<li>support for receiving messages via
reliable <a href="http://www.monitorware.com/Common/en/glossary/rfc3195.php">
RFC 3195</a> delivery<li>control of log output format,
including ability to present channel and priority as visible log data<li>good timestamp format control; at a minimum, ISO 8601/RFC 3339
second-resolution UTC zone<li>ability to reformat message contents and work with substrings<li>support for
log files larger than 2gb<li>support for file size limitation and automatic
rollover command execution<li>support for running multiple rsyslogd
instances on a single machine<li>support for <a href="rsyslog_stunnel.html">
ssl-protected syslog</a> (via stunnel)<li>ability to filter on any part of
the message, not just facility and severity<li>support for discarding
messages based on filters<li>ability to execute shell scripts on received
messages<li>control of whether the local hostname or the hostname of the
origin of the data is shown as the hostname in the output<li>ability to
preserve the original hostname in NAT environments and relay chains
<li>ability to limit the allowed network senders<li>powerful BSD-style
hostname and program name blocks for easy multi-host support<li>
multi-threaded - currently experimental<li>very
experimental and volatile support for <a href="syslog-protocol.html">syslog-protocol</a>
compliant messages (it is volatile because standardization is currently
underway and this is a proof-of-concept implementation to aid this effort)</ul>
<p> </p>
<h2>Upcoming Features</h2>
<ul>
<li>support for native SSL enryption of plain tcp syslog sessions
<li>pcre filtering - maybe (depending on feedback) - simple regex already
partly added
<li>solid multi-threading<li>support for
<a href="http://www.monitorware.com/Common/en/glossary/rfc3195.php">RFC 3195</a>
as a sender - planned</ul>
<p>To see when each feature was added, see the
<a href="http://www.rsyslog.com/Topic4.phtml">rsyslog change log</a> (online
only).</p>
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