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List Archive: gentoo-security
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To: <gentoo-security@g.o>
From: "Giles Coochey" <giles.coochey@...>
Subject: RE: hosts.{allow,deny} vs. iptables.
Date: Thu, 13 Oct 2005 13:44:27 +0100
> >So why many people and security guides still suggest the use of tcpd
> >over simple iptables rules?
> 
> Not sure, maybe this pros 
> - if you forget to start your iptables script your ports are open
> - you can check with 'PARANOID' whether hostname and ip record match
> 

This could end up being a very interesting thread.

Iptables is nice because it is at kernel level, if someone were to try
to hack it so that your Iptables commands were ignored then they would
need to be able to reboot the box, something that you would probably
notice in a managed environment.

Tcpd runs in userspace, so given root access is a lot easier to
compromise the executable.

Just my 2c




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Updated Jun 17, 2009

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