If the admin doesn't set the ssh service port on default 22, how can I find the port that he set? Trust me I don't plan to doing bad things. I am just curious!
update: The ssh service port is on 521. I can be sure. Because i can use ssh login via 521. nmap addresshided -sV Starting Nmap 5.51 ( http://nmap.org ) at 2011-09-30 09:38 CST Nmap scan report for addresshided Host is up (0.0052s latency). Not shown: 996 filtered ports PORT STATE SERVICE VERSION 23/tcp closed telnet 80/tcp closed http 443/tcp closed https 631/tcp closed ipp Service detection performed. Please report any incorrect results at http://nmap.org/submit/ . Nmap done: 1 IP address (1 host up) scanned in 5.45 seconds
I think i need to study nmap further. Thank you for all the reply. :-)