From mboxrd@z Thu Jan  1 00:00:00 1970
From: Sapient2003 <sapient@qwest.net>
Subject: Communication redirect
Date: Wed, 30 Apr 2003 15:23:17 -0400
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How can I redirect communication to a program... So far I have tried:

iptables -t filter -A INPUT -p tcp --destination-port 21 -j REDIRECT testftp