Думаю все-таки, что проблемы с сетью, поэтому пишу здесь. Запускаю freshclam, получаю это
[root@master ~]# freshclam -v
Current working dir is /var/lib/clamav
Max retries == 3
ClamAV update process started at Wed May 2 13:33:01 2012
Using IPv6 aware code
Querying current.cvd.clamav.net
WARNING: Can't query current.cvd.clamav.net
WARNING: Invalid DNS reply. Falling back to HTTP mode.
Connecting via 192.168.114.2
If-Modified-Since: Sun, 14 Nov 2010 14:58:22 GMT
Reading CVD header (main.cvd): nonblock_connect: connect timing out (30 secs)
Can't connect to port 3128 of host 192.168.114.2 (IP: 192.168.114.2)
WARNING: Can't read main.cvd header from db.ru.clamav.net (IP: )
Trying again in 5 secs...
ClamAV update process started at Wed May 2 13:33:56 2012
Using IPv6 aware code
Querying current.cvd.clamav.net
WARNING: Can't query current.cvd.clamav.net
WARNING: Invalid DNS reply. Falling back to HTTP mode.
Connecting via 192.168.114.2
If-Modified-Since: Sun, 14 Nov 2010 14:58:22 GMT
Reading CVD header (main.cvd): nonblock_connect: connect timing out (30 secs)
Can't connect to port 3128 of host 192.168.114.2 (IP: 192.168.114.2)
WARNING: Can't read main.cvd header from db.ru.clamav.net (IP: )
Trying again in 5 secs...
ClamAV update process started at Wed May 2 13:34:51 2012
Using IPv6 aware code
Querying current.cvd.clamav.net
WARNING: Can't query current.cvd.clamav.net
WARNING: Invalid DNS reply. Falling back to HTTP mode.
Connecting via 192.168.114.2
If-Modified-Since: Sun, 14 Nov 2010 14:58:22 GMT
Reading CVD header (main.cvd): nonblock_connect: connect timing out (30 secs)
Can't connect to port 3128 of host 192.168.114.2 (IP: 192.168.114.2)
WARNING: Can't read main.cvd header from db.ru.clamav.net (IP: )
Giving up on db.ru.clamav.net...
Update failed. Your network may be down or none of the mirrors listed in /etc/clamav/freshclam.conf is working. Check http://www.clamav.net/support/mirror-problem for possible reasons.
Connecting via 192.168.114.2
WARNING: Clamd was NOT notified: Can't connect to clamd through /var/lib/clamav/clamd.socket
connect(): No such file or directory
Насколько я понял, здесь говорится, что ваша сеть или вы дауны, поэтому ничего у вас не получится(.
192.168.114.2 это провайдерский прокси. Проблемы с резолвингом?