Nmap Network Scanning: The Official Nmap Project Guide to Network Discovery and Security Scanning,   ISBN:9780979958717

Customer Rating: 

As others have said much better than I can, this is an amazing book.

It covers pretty much everything about nmap and gives excellent descriptions of the many scans you can perform. The best part is that it is not rehashed man page information, but he explains what is going on under the hood. This makes the book invaluable as a reference.

There are several amusing stories about nmap usage, the story is priceless and absolutely stunning! The only confusing part is the warnings about scanning without permission, yet seems to do it throughout the book. The [...] scan story was a hoot but I doubt he had permission to do that.

This book is a must for all network and security students and professionals.

Customer Rating: 

Even if you don't use Nmap every day, you have to have this exceptional in-depth material. You will learn how NMAP really works and much more about network security, port scanning, etc. Also, by buying this book you support the author, Mr. "Fyodor" Lyon, who dedicated so much time creating this wonderful tool for free. Thank God for people like him, the creators of Wireshark and other awesome open source tools. Absolutely recommended!

Customer Rating: 

What can be said, really? The definitive manual/guide for Nmap, written by the developer. A stellar bit of documentation for an equally stellar application. I thought I was reasonably
adept at utilizing Nmap for my Network Administration and Security scanning needs. I was wrong.

A GREAT BOOK! Buy it!

Customer Rating: 

I have used NMAP for a few years, but it has not been a part of my daily tool set. The tool was always good, but I did not understand all of the switches and how to make it do what I really wanted. Reading this book has helped change that. The hands on approach of walking the reader through the commands and showing what results should be expected was very helpful.

This book gives you a very in-depth look at what the tool can do and how you can use it to gather the information you need. The examples in the book are excellent sources of reference.

I would recommend this book for anyone in the Networking and Network Security fields who wants to better serve their clients and make their jobs easier.

Customer Rating: 

nmap is a well-used component of my IT toolbox. I use it primarily for self-discovery (no, not THAT sort of 'self-discovery') - to check my network perimeter, to check the security model inside my network, to figure out who's doing what on my wire, etc. - but I always knew that I was taking advantage of only a small part of its potential.

Lyon's book provides a detailed and informative presentation to nmap and its many uses in the professional IT arsenal. While, a fair bit of the material can be gleaned from a wide-assortment of sources on the net (somewhere in those tubes) - including from Lyon's own site, [...] - this book coalesces and distills the material into a tight, cohesive and entertaining presentation with added tidbits that only the author of such a powerful tool might know. And since, like any good tool, using nmap can be dangerous w/o a good user manual, this book provides the need-to-know information for efficient use of nmap.

Hell, even if the book sucked, the guy has done such a valuable service by providing this free, open-source tool it seems only fitting that we throw him a couple of bucks for all of his effort. But the book rocks, so it's a two-fer: good-info AND smug feeling of satisfaction that $$ is well spent on someone who actually did something.

So: If you want to be in the know you need this book. If you want to know what is on your network you need this book. If you want to keep ahead of those damned script-kiddies you need this book.