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original version by: Nikos Drakos, CBLU, University of Leeds
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* revised and updated by: Marcus Hennecke, Ross Moore, Herb Swan
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* with significant contributions from:
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Jens Lippmann, Marek Rouchal, Martin Wilck and others -->
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<HTML>
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<HEAD>
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2004-03-13 22:13:40 +00:00
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<TITLE>Clamuko</TITLE>
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2003-07-29 15:37:11 +00:00
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<B> Previous:</B> <A NAME="tex2html567"
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HREF="node19.html">Clamdscan</A>
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  <B> <A NAME="tex2html575"
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HREF="node1.html">Contents</A></B>
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2004-03-13 22:13:40 +00:00
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<H2><A NAME="SECTION00043000000000000000"></A><A NAME="clamuko"></A>
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<BR>
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Clamuko
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</H2>
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Clamuko is a special thread in <I>clamd</I> that performs on-access
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scanning under Linux and FreeBSD. It is implemented as a thread in clamd
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and cannot work as a clamd client because of the Dazuko implementation.
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There are however some benefits of the current implementation - clamuko
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is sharing the internal virus database with clamd and it's updated with
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the RELOAD command. <B>You must follow some important rules when
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using clamuko:</B>
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<UL>
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<LI>Always stop the daemon cleanly - using the QUIT command or
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the SIGTERM signal. In other case you can lose your access
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to protected files until the system is restarted.
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</LI>
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<LI>Never protect a directory your mail-scanner software
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uses for attachment unpacking. Access to all infected
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files will be automatically blocked and the scanner (even clamd)
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won't be able to detect a virus. <B>All infected mails will
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be delivered.</B>
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</LI>
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</UL>
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You need to enable clamuko in <I>clamav.conf</I>. To protect the /home
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directory enable:
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<PRE>
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ClamukoIncludePath /home
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</PRE>
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To protect the whole system:
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<PRE>
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ClamukoIncludePath /
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ClamukoExcludePath /proc
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ClamukoExcludePath /temporary/dir/of/your/mail/scanning/software
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</PRE>
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You can use clamuko to protect files on Samba/Netatalk (but far
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more better and safe idea is to use the <B>samba-vscan</B> module
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<A HREF="node43.html#samba-vscan">5.16</A>. NFS is not supported (Dazuko doesn't intercept NFS
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access calls). Yet another idea - you may build a database that contains
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signatures for popular exploits and setup clamd to protect your server
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from script-kiddies.
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2003-07-29 15:37:11 +00:00
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<B> Next:</B> <A NAME="tex2html577"
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HREF="node21.html">Archives and compressed files</A>
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<B> Up:</B> <A NAME="tex2html573"
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2004-03-13 22:13:40 +00:00
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HREF="node17.html">Usage</A>
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2004-06-03 16:03:10 +00:00
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<B> Previous:</B> <A NAME="tex2html567"
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2004-03-13 22:13:40 +00:00
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HREF="node19.html">Clamdscan</A>
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2004-06-03 16:03:10 +00:00
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  <B> <A NAME="tex2html575"
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HREF="node1.html">Contents</A></B>
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<ADDRESS>
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Tomasz Kojm
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2004-06-03 16:03:10 +00:00
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2004-06-03
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2003-07-29 15:37:11 +00:00
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