Setting up secure windows xp network

["SML" <sml () ukf net>]

Hello list.
I'm in the process of securing Windows xp prof network, consisting of 5
computers.
We use "workgroup" configuration.
Also the computers are conected to internet through windows 2000 gateway
computer with 2 network cards, where one card connects to ADSL router. NAT
software is in place on the gateway.
I'd much appreciate if somebody could point me to the internet recourses, or
give advise on how to make the most of windows own security features,
policies etc. Also what software firewall could we use on the gateway, since
after trying norton and mcaffe firewals, we couldn't access the intrenet.

Thanks,
Anna



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