linux firewall anti-virus

is linux free from virus? is there an anti virus service that could be integrated on a linux firewall? i read about clamav but it says that it is being integrated to a mail server.

Yes, Linux is mostly free from all mass-spreading malware. There are some Antivirus Engines like Clamav, those can be used through console to detect viruses in any file, but they are usually used to protect windows machines, if the linux box serves as a mail/file/other server.

Here's a few AV engines for linux:

* app-antivirus/bitdefender-console
Latest version available: 7.0.1-r1
Latest version installed: [ Not Installed ]
Size of files: 2,293 kB
Homepage: www.bitdefender.com/
Description: BitDefender console antivirus
License: as-is

* app-antivirus/clamav
Latest version available: 0.88.2
Latest version installed: [ Not Installed ]
Size of files: 5,875 kB
Homepage: www.clamav.net/
Description: Clam Anti-Virus Scanner
License: GPL-2

* dev-perl/Mail-ClamAV [ Masked ]
Latest version available: 0.17
Latest version installed: [ Not Installed ]
Size of files: 15 kB
Homepage: search.cpan.org/~sabeck/Mail-ClamAV-0.17
Description: Perl extension for the clamav virus scanner.
License: Artistic

* app-antivirus/f-prot
Latest version available: 4.6.5
Latest version installed: [ Not Installed ]
Size of files: 3,984 kB
Homepage: www.f-prot.com/
Description: Frisk Software's f-prot virus scanner
License: F-PROT

* app-antivirus/klamav
Latest version available: 0.37
Latest version installed: [ Not Installed ]
Size of files: 1,657 kB
Homepage: klamav.sourceforge.net/
Description: KDE frontend for the ClamAV antivirus.
License: GPL-2

* app-antivirus/vlnx
Latest version available: 432e-r2
Latest version installed: [ Not Installed ]
Size of files: 7,858 kB
Homepage: www.mcafeeb2b.com/
Description: McAfee VirusScanner for Unix/Linux(Shareware)
License: VirusScan

Of course there should be others, more windows-like and commercial, but in my opinion they're totally unnecessary.

thnx nske. i will try those, but which one would you recommend most?

On mailservers I've used F-Prot and ClamAV, and I've found ClamAV to consume far less resources. I see it removes many infected messages every day, but like Sahir says, they're all Signature-based Antiviruses so don't rely too much on them!

Finally Someone else realized that a AV solution is as only good as the updates provided.

Lindows :idea: