Re: Port numbers???

From: Jose Maria Lopez Hernandez (
Date: 09/01/04

Date: Wed, 01 Sep 2004 18:24:24 +0200

Lars M. Hansen wrote:
> On Wed, 01 Sep 2004 00:41:58 +0200, Jose Maria Lopez Hernandez spoketh
>>But if it can use port 80 then it's almost impossible to block it with
>>the firewall. Maybe an IPS as snort-inline can do the job.
> Depends. If you have a firewall that uses application proxies, then the
> firewall may block anything on port 80 that isn't legitimate http
> traffic.

That's a very good solutions. Do you know of a good application proxy
for Linux? I have fwtk and Trex, and I have written a message to some
groups to see if someone can compile Trex completely without errors,
because I couldn't, but no one responds to my question.

> Lars M. Hansen
> (replace 'badnews' with 'news' in e-mail address)

Jose Maria Lopez Hernandez
Director Tecnico de bgSEC
bgSEC Seguridad y Consultoria de Sistemas Informaticos
The only people for me are the mad ones -- the ones who are mad to live,
mad to talk, mad to be saved, desirous of everything at the same time,
the ones who never yawn or say a commonplace thing, but burn, burn, burn
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                 -- Jack Kerouac, "On the Road"