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| Subject: | Re: Advice on Fastest NMAP Scan |
|---|---|
| Date: | Tue, 26 Oct 2004 11:43:02 -0700 |
Mogren, Jack L.(mogren@mayo.edu)@Tue, Oct 26, 2004 at 09:58:50AM -0500:
I want to use NMAP to perform a network inventory on our network. We have over 75,000 networked devices. The address ranges include one class B, several class Cs, and the entire private address space. That's a lot of addresses to scan and I expect it to take a long time. I'm looking for advice on what options one might use to create the fastest NMAP scan. I'm only interested in finding our each devices OS and open services. Here's what I've come up with so far.
Jack, You may want to look into unicornscan (http://www.unicornscan.org). It was built to handle networks of that size. The getting started guide (http://www.dyadsecurity.com/unicornscan/getting_started.txt), and the FAQ (http://www.dyadsecurity.com/unicornscan/unicornscan_faq.txt) will help you with sample syntax. If you run into any problems, let us know at osace-users@lists.sourceforge.net. Robert -- Robert E. Lee CTO, Dyad Security, Inc. W - http://www.dyadsecurity.com E - robert@dyadsecurity.com M - (949) 394-2033
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