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Date:      Wed, 31 Aug 2005 22:58:05 +1000
From:      Norberto Meijome <freebsd@meijome.net>
To:        Norberto Meijome <freebsd@meijome.net>
Cc:        freebsd-questions@freebsd.org
Subject:   Re: Application layer firewall on FreeBSD, is it possible ?
Message-ID:  <4315A95D.6030101@meijome.net>
In-Reply-To: <4315A60A.40002@meijome.net>
References:  <20050830234717.3D5E14E704@pipa.profix.cz> <4315A60A.40002@meijome.net>

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Norberto Meijome wrote:

after reading my own post i realised it wasn't too clear

> I havent seen any way to control traffic for P2P apps reliably @ the 
> protocol layer,

'I havent seen any way to reliably control traffic for P2P apps by 
simply looking @ ports + IP protocol'


> u need to inspect it. 

you need to analyse the packets.

> Something like snort attached to 
> your firewall, i guess ... though it'd be a reverse IDS (or a reverse 
> IPS, intrusion prevention system, I've seen it called...)
> 
... which would update/feed rules to the firewall / packet filter. aka 
proxy...maybe SOCKS would achieve this? (mind you, most p2p apps have 
settings for socks
B



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