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Re: Statistical Data for use in Scans
From: Ron <ron () skullsecurity net>
Date: Thu, 16 Jun 2011 17:10:10 -0500

Maybe it should put them last, just in case the server comes online during the scan? :)

Seriously though, I think this would be far too much effort for too little actual benefit. I see very, very few case 
where this would make a difference. 

Ron

On Wed, 25 May 2011 19:25:45 -0400 Andrew Johnston <ahjohnston25 () gmail com> wrote:
Hello-

I had a thought which I believe might be of interest to some of the
expert programmers responsible for Nmap's astounding progress.

If multiple hosts are scanned, why not use the data to guess at what
the next server runs?

For example, if an Nmap user decides to scan a subnet, Nmap will start
scanning one of the hosts in the scope for open ports (For
simplicity, I'm ignoring the ping scan portion). Let's say the first
machine runs HTTP and HTTPS on the standard ports. On the second
machine, it is the same case, perhaps one other port is open (an
outlier in this case).

What if Nmap could use this data and organize the probes based on
the likelihood for response? It would still scan the other ports, but
prioritize the scan so that if the machine were to become
unresponsive for some reason, the scanner would have the most data
possible, perhaps even avoiding the need to rescan the hosts at a
slower rate.

Not sure if this has been asked before, but I thought I'd throw it out
there.

Regards,

-- 
Andrew Johnston

Andrew Johnston is a Mensa Member

Visit American Mensa at http://www.us.mensa.org
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