Insufficient responses for TCP sequencing (2), OS detection may be less accurate
Interesting ports on  (151.1.143.89):
(The 1528 ports scanned but not shown below are in state: filtered)
Port       State       Service
21/tcp     open        ftp                     
22/tcp     closed      ssh                     
23/tcp     open        telnet                  
25/tcp     open        smtp                    
53/tcp     closed      domain                  
80/tcp     open        http                    
81/tcp     open        hosts2-ns               
110/tcp    open        pop-3                   
143/tcp    closed      imap2                   
443/tcp    closed      https                   
554/tcp    closed      rtsp                    
1433/tcp   open        ms-sql-s                
5631/tcp   open        pcanywheredata          
8080/tcp   closed      http-proxy              

Remote OS guesses: Windows NT 5 Beta2 or Beta3, Windows Me or Windows 2000 RC1 through final release, MS Windows2000 Professional RC1/W2K Advance Server Beta3, Windows Millenium Edition v4.90.3000

# Nmap run completed at Fri Jul 13 00:32:24 2001 -- 1 IP address (1 host up) scanned in 543 seconds