antivirus for linux

[Bruno França dos Reis <brunoreis () terra com br>]

Hello guys

I'm kinda new to linux, and getting more and more worried about security. I 
was wondering: is it necessary for me to have an anti-virus application? If 
so, is it a "live scanner", like the ones I know for windows?

Do you recommend using an anti-virus software? If so, which?

Moreover, I have a linux firewall. Is there any way for me to detect virus 
activity trying either to break into a computer (like Sasser or others like 
it) or to detect incoming mail with virus? Note: my firewall isn't my mail 
server. I was wondering if it could sniff connections to pop mail servers and 
detect virus code.

Thanks in advance.

Bruno Reis

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