ClamAv virus scanner installation
ClamAv is one the best GPL antivirus software at the moment. You can download updates every day, can upload
new viruses signatures and even build your own viruses database. It's command prompt virus scanner that will
be called by Amavis antivirus scanner described later.
To read more information visit http://clamav.net.
Installation
Download latest version of ClamAv from
http://prdownloads.sourceforge.net/clamav
ClamAv scanners is run under user 'clamav' so we need to add this user and finish installation:
adduser -s /sbin/nologin clamav
tar -xzvf clamav*
cd clamav*
./configure
make
make install
Then you need to add startup script into your Linux system. At Redhat it's /etc/init.d/clamd. You can take
this script at
http://smartcgi.com/dist/postfix/init.d/clamd.
At Redhat, add it into startup level by this way:
chkconfig --add clamd
chkconfig clamd on
chmod 711 /etc/init.d/clamd
/etc/init.d/clamd start
ps ax | grep clam
You should see clam running:
xxxx ? S 0:00 /usr/local/sbin/clamd
Also, you need to add a command into cron for user clamav to update viruses database every day. It should be
like following:
0 4 * * * /usr/local/bin/freshclam --daemon-notify > /dev/null 2>&1
Copy clamav.conf from directory etc/ of your ClamAv distribution to /usr/local/etc/. Open at any editor and
comment next line off:
#Example
List of content
- Introduction
- Misc software installation
- Antivirus software
- Antispam - SpamAssassin installation
- Postfix installation
- COPYRIGHT
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