[cobalt-users] IPChains/PMFirewall: Mult Subnets

["Troy Arnold" <cobalt@xxxxxxxxxxxxxx>]

Hi all. It's been a little while. The holidays, business and life have been
in the way of my posting any follow-ups with the CMU transfer (very
successful!). I am just finishing up AVPLinux, Amavis, GNUPG installations.
Next is RSYNC and CMU as a backup package. I will be sharing this info as I
get time... sorry for the delay.

Been struggling for over a month with setting my firewall rules. Initial
rules setup is with PMFirewall. Using the prepackaged rules that PMFirewall
outputs my main IP subnet works perfectly... email, http, etc. however all
of my virtual sites, which are hosted on a different public subnet are
completely shutdown.

Current virtual sites configuration example.
Main IP: xxx.xxx.xxx.xxx
Virtual Sites: xxx.xxx.xxy.xxx

I have been researching this heavily and testing different rulesets
(modifications) to no avail. I have reviewed the lists at PMFirewall and
Cobalt and found references to this problem. Even though I make similar
changes to pmfirewall.rules.local and pmfirewall.conf (adding OUTERNET2,
OUTERNET3, etc), I get the same results (main ip site works, virtual sites
function) when starting PMFirewall. What do I have to do to get my firewall
running for both subnets?

In PMFirewall it asks for eth0... I feel stupid asking but should this be an
entry of eth0 if I have only one ethernet card? In my research some use ppp0
(dialup)?

As always, a novice in the learning stages. Any ideas would be extremely
helpful? Have a standard ruleset already functional for this situation you'd
like to share? Thanks in advance.

Best regards,
Troy Arnold
cobalt@xxxxxxxxxxxxxx