# nmap (V. 2.54BETA22) scan initiated Mon Apr 16 04:05:12 2001.
 
Insufficient responses for TCP sequencing (3), OS detection may be less accurate
Interesting ports on w13.plugit.net (195.62.227.19):
(The 1538 ports scanned but not shown below are in state: filtered)
Port       State       Service
20/tcp     closed      ftp-data                
21/tcp     open        ftp                     
80/tcp     open        http                    
443/tcp    closed      https                   

Remote OS guesses: Windows NT4 / Win95 / Win98, Windows NT 4 SP3, Microsoft NT 4.0 Server SP5 + 2047 Hotfixes

# Nmap run completed at Mon Apr 16 04:12:44 2001 -- 1 IP address (1 host up) scanned in 452 seconds