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Re: [Patch] Output partial results after host timeout
From: Daniel Miller <bonsaiviking () gmail com>
Date: Sun, 23 Mar 2014 07:54:39 -0500

Chris,

Thanks for these patches! This particular feature is one I've thought would
be useful for a long time. However, I think we need a way to make it clear
in the output that the results are incomplete. This would involve (at
minimum) altering the Nmap XML DTD. We also need to consider how it would
affect the other output formats (Normal and Grepable). Finally, it needs
testing to determine how our output routines can handle the
possibly-incomplete data structures representing each stage of the scan
where a timeout could occur: for instance, what happens when the timeout
happens in the middle of OS guessing? Halfway through a traceroute?

I don't expect you to have answers for all of these questions, since some
of them will need to involve community discussions, but if you have ideas
on how to handle them, we would love to hear it.

Dan


On Fri, Mar 21, 2014 at 4:04 PM, Chris Woodbury <woodbusy () gmail com> wrote:

I'm sending in a few small extensions to Nmap I've developed with my
colleagues at Trustwave. If other people think they're useful, we would be
glad to see them get merged in.

The first is an argument that causes Nmap to output data for hosts that
have hit the host timeout limit. Currently, if a host is 95% done with a
port scan when it times out, Nmap will show no results for the host. This
will cause it to output the results of the 95% of the ports that were
scanned.

-chris

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