Insufficient responses for TCP sequencing (3), OS detection may be less accurate
Interesting ports on server.oba.com.br (200.194.96.235):
(The 1 port scanned but not shown below is in state: closed)
Port       State       Service
80/tcp     open        http                    

Remote operating system guess: Windows NT4 / Win95 / Win98

# Nmap run completed at Sun Jan  6 11:07:10 2002 -- 1 IP address (1 host up) scanned in 43 seconds