From mboxrd@z Thu Jan  1 00:00:00 1970
From: Chris Brenton <cbrenton@chrisbrenton.org>
Subject: Re: how to block packets with specific words inside udp datagram???
Date: 12 Oct 2003 13:50:00 -0400
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To: "Piotr P." <peterp@poczta.onet.pl>
Cc: netfilter@lists.netfilter.org

On Sun, 2003-10-12 at 11:35, Piotr P. wrote:
>
> Does any body know how to
> block traffic with this word using iptables?

iptables =E2=80=93A FORWARD =E2=80=93p udp =E2=80=93d 0/0 --dport 1024:65=
535 =E2=80=93m string --string
"KaZaA" =E2=80=93j DROP

should do the trick.

HTH,
C