Re: OS fingerprint extraction quality when scanning a large number of machines

[David Fifield <david () bamsoftware com>]

On Thu, Dec 18, 2008 at 01:31:29AM -0500, Michael Head wrote:
> David wrote on 12/18/2008 12:15:40 AM:
> > I found and fixed an OS scan bug in r11421. An implementation error
> > disabled global congestion control, leading to large bursts of
> > outstanding probes. With the fix Nmap will not send so many at once.
> >
> > Unfortunately, as I said I can't reproduce the problem so I don't know
> > if this fixes it specifically. If you have been compiling from source
> > please try r11421. Anyone else who has experienced this problem, we
> > could use your help.
>
> I have been using the 4.76 pre-built windows installer, but I can surely
> build and test it here. What's the preferred build system to make sure the
> version I try is most comparable to the version I've been using?

Great. Instructions for building on Windows are in one of the freely
available online chapters of the Nmap book. To get the source from
Subversion follow the instructions at

http://nmap.org/book/install.html#inst-svn

Then to build the program with Visual C++, do

http://nmap.org/book/inst-windows.html#inst-win-source

David Fifield

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