From mboxrd@z Thu Jan  1 00:00:00 1970
From: Goetz Bock <netfilter@blacknet.de>
Subject: Re: firewalled dns clients
Date: Fri, 7 Nov 2003 11:24:25 +0100
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On Fri, Nov 07 '03 at 11:49, Fritz Mesedilla wrote:
> From their windows workstation, I want to be able to let them perform a nslookup.
> 
> I tried this and nothing happened.
> $IPTABLES -A INPUT -p tcp --sport 53 -j ACCEPT
> even a
> $IPTABLES -A INPUT -p tcp --dport 53 -j ACCEPT
nslookup/dns needs udp, too. And you must use the FORWARD chain if you
don't run the dns server on the firewall.

What about having a look at the rules produced by some of the
firewall generation scripts. e.g. fireHOL. (-> firehol.sf.net)
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