On Thu, 31 Jan 2002, Eric G. Miller wrote: > On Thu, 31 Jan 2002 09:08:45 -0500 (EST), Matt Kopishke <[EMAIL PROTECTED]> > wrote: > > > I have set up a firewall using ipchains and the bridge patch > > (bridgein) under potato (2.2.19). The one snag I had was although the > > firewall works well only letting the world see certain ports (80 & 443), > > it doesn't let the servers behind the firewall get out. I set up a rule > > that allows all traffic that originated behind the firewall out, but > > because we only have a couple of ports open, and we have no clue what port > > the reply packets are going to come on, the reply packets get denied. > > > > I was wondering if there is any way to mark out going packets so we can > > let them through on their way back? > > Yea, it's called iptables/netfilter (kernel 2.4.x).
I've just switched to 2.4.x on my laptop, and it was painless. I'm about to do the same on a desktop that runs a firewall using my old original ipfwadm rules, which are magically translated by debian (potato/2.2.x) into (i think) ipchains. Is there someplace I can find instructions to convert to iptables? Is there a similar on-the-fly conversion script? ...RickM...