Nmap Development mailing list archives
Re: Feature request
From: Fyodor <fyodor () insecure org>
Date: Thu, 21 Apr 2005 17:21:29 -0700
On Fri, Mar 18, 2005 at 09:04:13AM +0100, Martin Mačok wrote:
On Fri, Mar 18, 2005 at 07:30:04AM -0000, Pritchard, Adam (IDS EUC EMEA) wrote: Some time ago, I had an idea to sort nmap-services ports by their occurrence and implement something like --ports-top <n>. This way, you could easily scan for top n TCP and/or UDP ports.
That is a good idea. There is the -F option, but it gives far too many ports. One problem is that we need good data (large scans of diverse ranges, both on the Internet and behind firewalls) to determine the most popular ports.
Anyway, the trick I'm using now is to have TOPN="1,2,3,..." environment variables and use them with "nmap -p$TOPN"
Clever move. I suppose Nmap really should have a --servicefile option in addition to the more generic --datadir that it already has. Maybe --servicefile should imply "-F" as well. Cheers, -F _______________________________________________ Sent through the nmap-dev mailing list http://cgi.insecure.org/mailman/listinfo/nmap-dev
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