\root@rcgeo:/etc# nmap localhost

Starting Nmap 5.00 ( http://nmap.org ) at 2011-10-02 15:54 EDT
Interesting ports on localhost.localdomain (127.0.0.1):
Not shown: 993 closed ports
PORT      STATE SERVICE
21/tcp    open  ftp
22/tcp    open  ssh
80/tcp    open  http
3306/tcp  open  mysql
5432/tcp  open  postgresql
8080/tcp  open  http-proxy
10000/tcp open  snet-sensor-mgmt

Nmap done: 1 IP address (1 host up) scanned in 0.13 seconds