I know this is off topic, so feel free to shun me or ignore me if you will,
but I think i will probly find ppl who have had / are having the same
problem here...
That said, I am trying to get the ("A serious example") ipchains 3 interface
setup from the ipchains howto working, and it is giving me nightmares.
I set it up just like it is in the example, but I am having trouble with DNS
and SMTP services.
I can receive mail, but I just can't send it. In addition, I cannot do a dns
lookup from outside our network. I have two DNS servers located in our DMZ,
and I guess my question is aimed at any IPchains gurus.
my question:
for a DMZ with a default (bad-DMZ & DMZ-bad) of DENY, what rules do I need
(in the bad-DMZ and DMZ-bad chains) to host an smtp server that can send and
recieve mail? I have tried opening up access to port 25, and allowing it,
and allowing access to other machines destined for port 25 (i thought this
would work). Ditto for the DNS servers. Everything else works great.
Thanks for ignoring / reading this if you get this far.
-Alex Fore
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