[Gllug] Anti-virus

[michael norman]

> > Should I look firther into configuring the firewall ?  I know next to
> > nothing of such matters, grateful for advice as to what if anything I
> > need to do to keep the machine safe.
>
> It depends a bit:
>
> if your cable modem is NAT-ed (Network Address Translation) where no
> incoming connections are allowed, you are pretty safe anyway.
>
> If incoming connections are possible, either because you aren't NAT-ed
> or because some "port-forwarding" is enabled, then having a firewall on
> your machine is a good idea. Actually, its a good idea anyway - defence
> in depth and all that. It's also very interesting (:
>
> A good place to start looking into packet filtering in linux is:
>   http://www.netfilter.org/documentation/index.html
> which has HOWTOs for iptables for linux. There is also what looks like a
> good article by the chap who wrote a lot of the packet filtering code
> for the linux kernel here:
>   http://www.linux-mag.com/2001-09/netfilter_01.html
>
> You should also have a dig around for some FAQs on securing linux -
> basically: don't run any services you don't need (often that means none
> at all on a desktop machine) and configure those you do run properly.
>
> Regards,
>
> Simon

Simon

Thanks for the comprehensive reply.

I'll explore the things you recommend.

Mike

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