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Re: Difficult Nmap Question from IRC
From: Brandon Enright <bmenrigh () ucsd edu>
Date: Wed, 14 May 2008 03:18:36 +0000

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On Tue, 13 May 2008 20:14:47 -0700
doug () hcsw org wrote:

Hey all,

Somebody had a tough question on IRC a few minutes ago. Let's
say you have a list of 10000 proxy servers (or torrent clients
or whatever) along with the specific port that proxy is thought
to be listening on. Is there any way to feed Nmap a list of
host/port pairs, instead of having Nmap scan each host with the
same port list? Assume that invoking Nmap separately for each
target is too inefficient.

Somebody brainstormed having a special -i mode, maybe -iP or
something that accepts input like this:

1.2.3.4:1234
2.3.4.5:9876
3.4.5.6:5555
etc

Doug

Along those same lines, I've long-wanted a per-host port exclude list so
that I can do a "nmap -p- --exclude-file ..." and exclude certain ports
on certain hosts.

Up till now I've considered the problem beyond the scope of Nmap and
haven't worried about it too much.  It would be nice to see some
engineering time put into coming up with a viable solution though.

I seem to remember either scanrand or Unicornscan accepting a host list
syntax that had a per-host port list.  Can anyone confirm this?

Brandon

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