[root@localhost ~]# nmap www.jsdig.com
Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2013-12-28 00:06 CST
Interesting ports on 100-42-212-8.static.webnx.com (100.42.212.8):
Not shown: 1678 filtered ports
PORT STATE service
22/tcp open ssh
80/tcp open http
Nmap finished: 1 IP address (1 host up) scanned in 45.870 seconds