Now we need to update our virus definitions. Clamscan includes a utility, freshclam, to take care of this. Freshclam automatically changes from root to the clamav user that you created during the installation. First, create a log file that freshclam can log to.
#touch /var/log/clam-update.log #chmod 600 /var/log/clamupdate.log #chown clamav /var/log/clamupdate.log |
Now start freshclam:
#freshclam -d -c 6 -l /var/log/clam-update.log |
This checks for a new virus definition database six (6) times a day. Check the /var/log/clam-update.log file. It should look something like this:
----------------------------------------------------------------------------------------------------- ClamAV update process started at Wed Jan 28 17:49:48 2004 main.cvd is up to date (version: 19, sigs: 19987, f-level: 1, builder: ddm) daily.cvd updated (version: 111, sigs: 597, f-level: 1, builder: tomek) Database updated (20584 signatures) from database.clamav.net (81.4.91.185). ----------------------------------------------------------------------------------------------------- |
Now add the freshclam -d -c 6 -l /var/log/clam-update.log to your startup scripts.
You can also setup a cronjob to update the Defs every 6 hours, if you like.
#vi /etc/crontab |
0 6 * * * root /usr/local/bin/clamscan |