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List Archive: gentoo-security
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To: gentoo-security@g.o
From: Robert Larson <robert@...>
Subject: Re: hosts.{allow,deny} vs. iptables.
Date: Thu, 13 Oct 2005 12:32:32 -0500
On Thursday 13 October 2005 02:26 am, Peter Volkov wrote:
> Can anybody explain the differences, pro/con between the mentioned two
> approaches in the subject?

First, I must say that this is a very interesting read on the original 
intended purpose of tcpd:

IMO, security works best in layers.  So, why not use both?

I see the following downsides:

- hosts.(allow|deny) seems to be implementation specific in the sense that not 
everything supports it.  You might need to check to see if it's supported, or 
simply use tcpwrappers/inetd if it is not.

- IPTables is platform specific, in that not every (*nix) operating system 
uses it.

On the other hand, these days it seems easier to setup a firewall in some form 
of a firewall builder app/script that can compile firewalls for multiple 
platforms from a centralized workstation.  Then have it push the firewalls 
out to each host and restart them appropriately.  Perhaps someday these apps 
may provide hosts.(allow|deny) support(?).  

If forced to choose, I would go with firewalls (or rather, IPTables), you have 
a lot more options especially when the firewall is stateful.

My 0.02..

gentoo-security@g.o mailing list

hosts.{allow,deny} vs. iptables.
-- Peter Volkov
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Updated Jun 17, 2009

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