I am not sure how many of you are using tools as "IP scanner", or angry xxx, or super scanner etc etc.. If you have ever get hands on nmap, you could shake hands and say good by to those IP scanner.
1. Nmap is the grand father of all those scanner (not the oldest, but since it born, no single one scanner has ever beyond it's ablity)
2. Fast, Native code
3. Designed to be used in High class situation (cyber war).
Ok, it could be a little not so easy to use or understand if you have not heard of TCP/IP Or fingerPrinting. however it does not stop you enjoy the benefit.
Nmap can use Syn/XMas/NULL scan in a speed where you can see nowhere else . (except netcut)
The Nmap suite includes an advanced GUI and results viewer (Zenmap), a flexible data transfer, redirection, and debugging tool (Ncat), a utility for comparing scan results (Ndiff), and a packet generation and response analysis tool (Nping).
Nmap was named “Security Product of the Year” by Linux Journal, Info World, LinuxQuestions.Org, and Codetalker Digest. It was even featured in eight movies, including The Matrix Reloaded, Die Hard 4, and The Bourne Ultimatum.
Download: http://nmap.org/dist/nmap-5.51-win32.zip Note: nmap has Unix and Mac version. the link here is only for windows.
Arcai.com --> Network Tools collection