In the near future I will be placing a number of PC's running both
Net BSD and Linux behind a machine that acts as a firewall (I believe its
referred to as a bastian host?) and a packet filtering router. Being new to
network security (I'm a student, and not majoring in any related fields)
I'm wondering if there is anything specific I should disable or modify that
might pose a problem to the rest of the machines behind the firewall? We
will be maintaining a web page on one of the machines (I've asked about
http problems in the past, but got no responses) but besides that we will
not be providing any extraneous services. I'd really like to get my hands
on a checklist detailing secure setup of hosts, especially in relation to
other hosts. We're getting connected through a defense think tank of sorts
and the idea has got a lot of people biting their nails.
Any help would be appreciated immensely.