Jeff wrote:
> 
> Does anyone know if you can have seperate inetd.conf files for each eth
> interface? 

I don't think so ...

> Or if not, can you have different ports open on each card.
 
Sure, firewalls do it all the time...
You can open paths into, out of, or through your box on a per port
and/or interface basis.

>then how?

Links :

http://www.linuxdoc.org/HOWTO/Firewall-HOWTO.html 
http://www.seifried.org/lasg/firewall/

or just go here:

http://www.google.com/search?q=port+interface+filtering+linux

if you want more...
-- 
Kevin O'Connor
 
 "People will be free to devote themselves to activities that are fun
... 
 
The GNU Manifesto - Copyright (C) 1985, 1993 Free Software Foundation,
Inc.