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<H2><A NAME="SECTION00041000000000000000"></A><A NAME="clamd"></A>
<BR>
Clam daemon
</H2>
<SPAN CLASS="textit">clamd</SPAN> is a multi-threaded daemon and uses <SPAN CLASS="textit">libclamav</SPAN>
to scan files against viruses. It may work in one of the two
following network modes, listening on a:
<UL>
<LI>Unix (local) socket
</LI>
<LI>TCP socket
</LI>
</UL>
The daemon is fully configurable via the <SPAN CLASS="textit">clamav.conf</SPAN> file. You will
find a description for every directive in the <SPAN CLASS="textit">clamav.conf(5)</SPAN>
manual. <SPAN CLASS="textit">clamd</SPAN> recognizes the following commands:
<UL>
<LI><SPAN CLASS="textbf">PING</SPAN>
<BR>
Check a daemon state (should reply with "PONG").
</LI>
<LI><SPAN CLASS="textbf">VERSION</SPAN>
<BR>
Print version information.
</LI>
<LI><SPAN CLASS="textbf">RELOAD</SPAN>
<BR>
Reload databases.
</LI>
<LI><SPAN CLASS="textbf">SHUTDOWN</SPAN>
<BR>
Perform a clean exit.
</LI>
<LI><SPAN CLASS="textbf">SCAN file/directory</SPAN>
Scan a file or directory (recursively) with archive support
enabled. A full path is required.
</LI>
<LI><SPAN CLASS="textbf">RAWSCAN file/directory</SPAN>
Scan a file or directory (recursively) with archive support
disabled. A full path is required.
</LI>
<LI><SPAN CLASS="textbf">CONTSCAN file/directory</SPAN>
Scan a file or directory (recursively) with archive support
enabled and don't stop even if virus is found.
</LI>
<LI><SPAN CLASS="textbf">STREAM</SPAN>
Scan stream - clamd will return a new port number you should
connect to and send a data to scan. <SPAN CLASS="textit">The protocol is
obsolete and there will be a new version soon (however this one
will still be supported).</SPAN>
</LI>
<LI><SPAN CLASS="textbf">SESSION, END</SPAN>
Start/end a clamd session - you can do multiple commands per TCP
session (WARNING: due to the clamd implementation the
<SPAN CLASS="textbf">RELOAD</SPAN> command will break the session).
<P>
</LI>
</UL>
Clamd reacts on the three special signals:
<UL>
<LI><SPAN CLASS="textbf">SIGTERM</SPAN> - perform a clean exit
</LI>
<LI><SPAN CLASS="textbf">SIGHUP</SPAN> - reopen the log file
</LI>
<LI><SPAN CLASS="textbf">SIGUSR2</SPAN> - reload the database
</LI>
</UL>
<P>
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<ADDRESS>
Tomasz Kojm
2004-07-22
</ADDRESS>
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