# nmap (V. 2.54BETA22) scan initiated Mon Apr 23 06:33:01 2001.
 
Warning:  OS detection will be MUCH less reliable because we did not find at least 1 open and 1 closed TCP port
Interesting ports on requests.optus.net.au (202.139.82.28):
(The 1539 ports scanned but not shown below are in state: filtered)
Port       State       Service
21/tcp     open        ftp                     
80/tcp     open        http                    
443/tcp    open        https                   

Remote operating system guess: Microsoft NT 4.0 Server SP5 + 2047 Hotfixes

# Nmap run completed at Mon Apr 23 07:09:57 2001 -- 1 IP address (1 host up) scanned in 2216 seconds