ClamAV - Updating clamd for releases earlier than ZCS 5.0.16

Revision as of 21:47, 15 April 2010 by Mmorse (talk | contribs) (direct download)

For those using ZCS 5.0.16 and prior, come 15 April 2010 anti-virus definitions will no longer update AND your ClamAV instance will stop working entirely.

Zimbra includes ClamAV 0.95 as of ZCS 5.0.18+. The clamav-0.95.1 directory from an installed ZCS 5.0.18 or later installation can be copied directly to an earlier ZCS 5.0 server. To upgrade ClamAV, perform the following steps:

Update: Available at

1. Install a new server with a later release of ZCS. The Free Open-Source release of ZCS is available at This document was tested with 5.0.21, but any release starting with 5.0.18 or later will work. 2. After the installation is complete, tar up clamav-0.95.1 on the new server:

cd /opt/zimbra
tar cf /tmp/clamav-0.95.1.tar clamav-0.95.1

3. Copy this tar file to your existing ZCS server.

cd /opt/zimbra
scp user@server:/tmp/clamav-0.95.1.tar .

4. Untar the file.

tar xf clamav-0.95.1.tar

5. Stop ZCS services.

zmcontrol stop

6. Change the symbolic link

ln -s clamav-0.95.1 clamav
ls -l clamav

The output line will look similar to:

lrwxrwxrwx  1 root root 25 Apr  9 15:39 clamav -> /opt/zimbra/clamav-0.95.1

7. Start services.

zmcontrol start

You can confirm that the new version of ClamAV is running by checking /opt/zimbra/log/clamd.log. The most recent startup in the log should look similar to:

Fri Apr  9 15:57:16 2010 -> +++ Started at Fri Apr  9 15:57:16 2010
Fri Apr  9 15:57:16 2010 -> clamd daemon 0.95.1-broken-compiler (OS: linux-gnu, ARCH: i386, CPU: i686)

With ClamAV 0.95 in place, updates should continue uninterrupted after April 15, 2010, and your system will remain protected.

This procedure was tested using ZCS 5.0.21 and ZCS 5.0.7.

Verified Against: ZCS 5.0.21 & 5.0.7 Date Created: 4/9/2010
Article ID: Date Modified: 2010-04-15

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