NSE target library

[Toni Ruottu <toni.ruottu () iki fi>]

  hello, people

I have been doing some experiments with using the target library. I am
noticing a trend. Whenever I know the IP of a good target in a script
I usually also know a good candidate for the port that the scan should
target. For example I wanted to scan quake3 servers for their options,
and I figured I'd first query official master servers for actual
servers, and then scan the actual servers. The problem is that the
actual servers run on whatever high ports, so targeting the ip
addresses alone does not find them, and scanning lots of closed ports
also consumes lots of time as the servers use udp for communication.

Another problem I noticed is that I can not run nmap without providing
a target. So when ever I use a script to populate the scan targets I
need to add something, say 127.0.0.1 as a starting target. Maybe there
should be a way to define an empty target set explicitly.

  my two centimeters, --Toni
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