Penetration Testing: Re: faster scans? (nmap)

From: Matt Selsky <selsky_at_columbia.edu>
Date: Mon, 3 Jun 2002 11:19:59 -0400

> I'm doing vanilla tcp connect scans (Syns aren't reliable in this
> case), so I was wondering if any of you have any tips on speeding up
> the process and not loosing reliablity. Here's the actual syntax nmap
> -sT -v -n -P0 -p 1- ip.ip.ip.ip-ip.

Try using -PT instead of -P0 to do a tcp-ping of the host before
trying to scan it. This should get around the lack of icmp which is why
I presume you are using -P0. If icmp is allowed, you could also do a
ping scan with -sP.

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Received on Jun 03 2002