Re: finding hosts

[Rob Nicholls <robert () robnicholls co uk>]

On Sun, 8 Nov 2009 09:35:20 +0000, MALTE SIMON <malte_simon () hotmail com>
wrote:
> simply I want just to use Port 3,5,6 and not port 80 for host discovery
> and then make a normal scan.

I think you need to use the -PS option, which sends a SYN to the stated
port(s).

For example: nmap -PS3,5,6 yourIPrange

Hopefully this is what you're looking for. It'll continue to scan all the
hosts that respond in some form to the SYNs, but if you're testing it out
you can combine it with -sP so it'll list the hosts marked as up.

Rob

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