Nmap ( OS and Service Fingerprinting)

In Part 2 of the Nmap Video series we will look at how to use Nmap for OS and Service level fingerprinting. OS and Service level information are very useful to network administrators and security auditors. This helps them understand the kind of hosts connected to the network and their exposure level. Though the OS / Service fingerprinting in Nmap works quite well, there are times when it fails to make a guess and will dump the fingerprinting info on the screen. If a user is aware of the OS of that machine, that it’s a good idea to submit the signature and info on the Nmap website , so the signature database can be updated.
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A detailed tutorial on the Nmap OS detection engine is available on the Nmap website.

Links:

1.Download Nmap

2.Nmap Installation Guide

3.Nmap Documentation and Usage

Vivek Ramachandran is a security evangelist and has been working in computer security related fields for the past 7 years. In 2007, Vivek spoke at world renowned conferences Defcon (WEP Cloaking Exposed) and Toorcon (The Caffe Latte Attack). The discovery of the Caffe Latte Attack was covered by CBS5 news, BBC online, Network World etc news agencies.In 2006, Vivek was announced as one of winners of the Microsoft Security Shootout contest held in India among 65,000 participants. He has also been a recipient of a Team Achievement at Cisco Systems for his work on 802.1x and Port Security modules on the Catalyst 6500 switches. Currently he spends all of his time maintaining Security- Freak.Net , SecurityTube.Net and is the founder of an online startup (currently in stealth mode). Vivek, is a Bachelor in Electronics and Communications Engineering from the prestigious Indian Institute of Technology, Guwahati.You can contact him at vivek[at]securitytube.net