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BackTrack 5 Cookbook by David De Smet, Willie Pritchett

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Service fingerprinting

Determining the services running on specific ports will ensure a successful pentest on the target network. It will also remove any doubts left resulting from the OS fingerprinting process.

How to do it...

Let's begin the process of service fingerprinting by opening a terminal window:

  1. Open a terminal window and issue the following command:
    nmap -sV 192.168.10.200
    
    Starting Nmap 5.61TEST4 ( http://nmap.org ) at 2012-03-28 05:10 CDT
    Interesting ports on 192.168.10.200:
    Not shown: 1665 closed ports
    PORT STATE SERVICE VERSION
    21/tcp open ftp Microsoft ftpd 5.0
    25/tcp open smtp Microsoft ESMTP 5.0.2195.6713
    80/tcp open http Microsoft IIS webserver 5.0
    119/tcp open nntp Microsoft NNTP Service 5.0.2195.6702 (posting ok)
    135/tcp open ...

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