From mboxrd@z Thu Jan  1 00:00:00 1970
From: Martijn Lievaart <m@rtij.nl>
Subject: Re: block nmap info
Date: Sun, 06 Feb 2005 00:44:15 +0100
Message-ID: <42055A4F.3040904@rtij.nl>
References: <20050127200622.GA23921@omega.lacnic.net.uy>
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To: Pablo Allietti <pablo@lacnic.net>
Cc: netfilter@lists.netfilter.org

Pablo Allietti wrote:

>hi all (again), how can i made a rules for block nmap information?
>
>if i do nmap -sT myhost.com from a cybercafe for example,   nmap display
>all ports open. exist any way to block this? something like block
>scanports?
>  
>

Lookup the psd module in patch-o-matic, it does exactly what you are 
looking for.

M4