Ethical Hacking

Learn to find vulnerabilities before the bad guys do! Gain real world hands on hacking experience in our state of the art hacking lab. Course designed and taught by expert instructors with years of penetration testing experience. 12 student maximum in every class. Certification attempt included in every package.
Computer Forensics Training at InfoSec Institute

Gain the in-demand skills of a certified computer examiner, learn to recover trace data left behind by fraud, theft, and cybercrime perpetrators. Discover the source of computer crime and abuse at your organization so that it never happens again. All of our class sizes are guaranteed to be 12 students or less to facilitate one-on-one interaction with one of our expert instructors.




Network Security Security-Basics
[Top] [All Lists]

Re: Advice on Fastest NMAP Scan

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

<Prev in Thread] Current Thread [Next in Thread>