Best router/firewall config. Advice needed
I am setting up a firewall/router and need help. I want this to be as secure as possible. I am considering setting up a DMZ and wanted to know if I should add a third NIC card for a dedicated DMZ. Is this needed or not? Can it be be run off the the other NIC that serve's the rest of the network?
Also, can anyone tell me a good tutorial for understanding IPtables? I have been using the linksys 54WRT54g for some years and fully understand the diferent permissions there, so I guess i kind of understand routing. Should I be reading more that that?
Are there any other tips that can make my router EXTRA secure? I will be using OpenVPN on my network to connect to business partners networks to do work. Thanks.
Abit IP35 Pro, E6750, 4GB Ram, XFX Nvidia 8600, 4 Raptors, 4 500GB WD's, 2 250GB WD's, Plextor Sata
P4 2.53Ghz, 2GB Ram, 5 160GB WD's, 2 120GB HD's
P4 2.6Ghz, 2GB Ram, 2 120GBHD, 3 80GB HD