Interesting ports on ns.masys.co.jp (211.17.188.34):
(The 1535 ports scanned but not shown below are in state: filtered)
Port       State       Service
20/tcp     closed      ftp-data                
21/tcp     open        ftp                     
25/tcp     open        smtp                    
53/tcp     closed      domain                  
80/tcp     open        http                    
110/tcp    open        pop-3                   
113/tcp    open        auth                    

Remote operating system guess: Linux 2.0.35-38

# Nmap run completed at Fri Jun  1 04:24:39 2001 -- 1 IP address (1 host up) scanned in 574 seconds