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 tfa1.tfa.org.tw (210.68.11.129):
(The 1534 ports scanned but not shown below are in state: filtered)
Port       State       Service
84/tcp     closed      ctf                     
310/tcp    closed      bhmds                   
492/tcp    closed      ticf-1                  
522/tcp    closed      ulp                     
655/tcp    closed      unknown                 
786/tcp    closed      concert                 
919/tcp    closed      unknown                 
2105/tcp   closed      eklogin                 

Too many fingerprints match this host for me to give an accurate OS guess

# Nmap run completed at Mon Jul 30 14:18:55 2001 -- 1 IP address (1 host up) scanned in 354 seconds