Nmap definitivno!

Ako zelis probati druge:

http://www.cotse.com/tools/pscan.htm
http://www.google.com/search?hl=en&q=port+scanner
http://www.gfi.com/lannetscan/?adclickid=3949218 - LANGuard je i mnogo vise od obicnog port scannera
http://downloads.antionline.com/category/2364-1-n.htm

Online port scanniranja

http://www.sdesign.com/securitytest/
http://www.t1shopper.com/tools/port-scanner/
https://grc.com/x/ne.dll?bh0bkyd2
http://www.hackerwatch.org/probe/
http://scan.sygatetech.com/quickscan.html

Za one koji ne neznaju sto je port scanner:
www.tech-faq.com/port-scanner.shtml

Uskoro cu napraviti listu port scannera koji se mogu naci netu...