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Real DMZ



Ok, It's time for me to expand my knowledge of firewalling a little bit.
I've got it down pretty good where I can to NAT and port forwarding and
blocking rules and such...
Now, how can I setup an ip range to use (CIDR'd) that is publicly
accessible?
I have a /27 network, and it would be nice to be able to add a backup
mail server at that site, and have it on the public network, yet, not
fully exposed to the outside world.
Where would I even start?
--Bryan