home firewall/server

[mailing at vankets.com (Bert Van Kets)]

Hi guys,

I'm a newbie when it come to setting up a server with enterprise
services. I have been using Linux for several years now and have a
MythTV box running. I have four PCs running and there's no Windows in
this house. :-D

I was playing with the idea of setting up a multi purpose server (file
sharing, print server, proxy, DNS, ...). The terms multi-purpose and
security do not go hand in hand, but that is a trade off I have to take
because I can not afford to run a full rack.

The main question is: Can I use the one machine as a firewall, using
multiple network cards on different subnets, and at the same time run
Squid, SMTP, DNS, DHCPD, CUPS, etc.. on it?
What is the take of the experts on a situation like this? Keep in mind
this is a home situation with a limited budget.

Thanks.

Bert