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



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.
Everything else should be blocked.

You can use LOG and scan the kern.log file and selectively add stuff
later.

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