On Apr 13, 2005, at 1:29 PM, Maarten Hartsuijker wrote:
> I'm currently installing an audit environment that should periodically
> audit several subnets. I've been trying to tune nmap for the initial
> sweep
> of the subnets in order to bring the time-to-completion down.
One point missing... version of nmap? I ran into a problem with some
of the recently older versions. Fyodor said he was trying to make nmap
more accurate, but made it slow down a lot. This was "fixed" in more
recent versions (I know 3.8x it is fixed). I also found that nmap
would stall some times on a single host, which is why I originally
wrote my nmap wrapper to run X number of nmap processes in parallel. I
think at last count I was scanning more than 180K IPs in less than 16
hours, but I had ICMP enabled for all my hosts to/from my monitoring
host.
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Received on Apr 13 2005
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