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Re: Looking for a network sniffer that collects a used-ports list to help preparing a portfilter firewall script



Hello

On 2004-11-12 martin f krafft wrote:
> also sprach Christian Hammers <ch@lathspell.de> [2004.11.12.1538 +0100]:
> > I remember a network sniffer that could be run e.g. over a week to
> > collects a list of all used tcp/udp ports which could then be used
> > as base for creating a firewall script for hosts.
> 
> What an extraordinarily bad idea. You should know what you allow.
The problem are those "customers". One has a firewall but forgot the password
and wants to replace the whole thing. I can, of course, blame him, if he
forgets to tell me of a script that fetches data on Port 12345 but it would be
easier if I would catch that information and could ask him about this port. 
So it's just meant as a help.

bye,

-christian-

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