From mboxrd@z Thu Jan  1 00:00:00 1970
From: Antony Stone <Antony@Soft-Solutions.co.uk>
Subject: Re: nmap
Date: Tue, 22 Oct 2002 19:31:42 +0100
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On Tuesday 22 October 2002 4:42 pm, antonio wrote:

> Hi Everyone,
>
> Just a question:
> I want to set up a firewall box with iptables in which I can use nmap.
> Which ports/protocols can I set to ACCEPT and which to DROP?

Do you mean you want to run nmap on a box also running netfilter, to scan 
other machines ?

If so, set your OUTPUT policy to ACCEPT, set your INPUT policy to DROP with a 
single rule:

iptables -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT

and you'll be able to scan other machines and get the replies back, but 
anything new coming in to your machine will be blocked.

If I didn't understand correctly what you wanted to do please give more 
details.

Antony.

-- 

Which part of 'apt-get dist-upgrade' do you not understand ???