Nmap Development mailing list archives
Re: Nmap Parallel Scans
From: David Fifield <david () bamsoftware com>
Date: Fri, 30 Sep 2011 18:56:19 -0700
On Fri, Sep 16, 2011 at 05:22:41PM +0100, Brahim Sakka wrote:
Hello list, Does running several Nmap scans in parallel from the same box affect Nmap's accuracy? If I have two IP ranges to scan, would scanning both ranges in parallel provide less relevant results then scanning both ranges with the same command?
Usually it's safe because Nmap's scanning modes choose ranges of source ports randomly, to reduce the chance that two separate nmaps will interpret the same response packet. And that's only really a concern if you are scanning the same addresses simultaneously. If you are scanning separate address ranges then there's nothing to worry about. David Fifield _______________________________________________ Sent through the nmap-dev mailing list http://cgi.insecure.org/mailman/listinfo/nmap-dev Archived at http://seclists.org/nmap-dev/
Current thread:
- Nmap Parallel Scans Brahim Sakka (Sep 16)
- Re: Nmap Parallel Scans David Fifield (Sep 30)