alex@sd-3150:~$ sudo nmap -sS pingthesemanticweb.com

Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2006-11-15 14:13 CET
Interesting ports on server1.talkdigger.com (64.34.172.55):
Not shown: 1677 filtered ports
PORT     STATE  SERVICE
22/tcp   open   ssh
3306/tcp open   mysql
8000/tcp closed http-alt

Nmap finished: 1 IP address (1 host up) scanned in 31.588 seconds