Hi,
Just curious, other than TrinityOS, are there any other
good example sites for rules of firewalls with the following:
single linux box -
On the outside a single NIC but aliased to 4 IP addresses.
WHY? 3 of them are aliased for IPPORTFW to send/receive
SMTP to 3 internal mail hubs of 3 different domains. Also,
this system is the NTP server for internal domain.
What I am looking for is examples with ipfwadm or ipchains when
you have mutliple aliased NICs and how you have to set those
up. Any pointers would be great... I do have basics working
now, but want to get "shadow" installed for IDS and also
beef up security a bit. Specifically with logging. That is
where
I seem to have problems, since I am using ipportfw for the 3 NICs
on port 25, I can't seem to get logging of the SYNs to occur.
thanks
r
