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<H2><A NAME="SECTION00042000000000000000"></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
scanning under Linux. It was implemented as a thread in clamd due
to the Dazuko implementation. Client (clamuko) - server (clamd) model is
currently not supported by Dazuko. However there are some benefits of
the current implementation - clamuko is sharing the internal virus
database with clamd and it's updated with the RELOAD command. <B>You
must obey the following important principles when using clamuko:</B> |
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<UL> |
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<LI>Always stop the daemon cleanly - using the QUIT command or
SIGTERM signal. In other case you can lose your access
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
uses for attachment unpacking. Access to all infected
files will be automagically blocked and the scanner (even clamd)
won't be able to detect a virus. <B>The infected mail will
be delivered.</B> |
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</LI>
</UL> |
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You need to enable clamuko in <I>clamav.conf</I>. To protect the /home
directory enable the following directive:
<PRE>
ClamukoIncludePath /home
</PRE>
To protect the whole system:
<PRE>
ClamukoIncludePath /
ClamukoExcludePath /proc
ClamukoExcludePath /temporary/dir/of/your/mail/scanning/software
</PRE>
You can use clamuko to protect file access on Samba/Netatalk (but far
more better and safe idea is to use the <B>samba-vscan</B> software
<A HREF="node40.html#samba-vscan">5.17</A>. NFS is not supported (Dazuko doesn't intercept NFS
access calls). Yet another idea - you may build a database that contains
signatures for popular exploits and setup clamd to protect your server
from script-kiddies. |
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<B> Next:</B> <A NAME="tex2html383"
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<ADDRESS>
Tomasz Kojm |
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2003-11-11 |
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</ADDRESS>
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