# nmap localhost Starting nmap 3.70 ( http://www.insecure.org/nmap/ ) at 2005-03-03 10:45 JST Interesting ports on ns2 (127.0.0.1): (The 1656 ports scanned but not shown below are in state: closed) PORT STATE SERVICE 21/tcp open ftp 23/tcp open telnet 25/tcp open smtp 111/tcp open rpcbind