Nmap scan report for reg6.utcc.ac.th (110.49.142.30)
Host is up (0.25s latency).
Not shown: 97 filtered tcp ports (no-response)
PORT    STATE  SERVICE
21/tcp  closed ftp
80/tcp  open   http
443/tcp open   https

Nmap done: 1 IP address (1 host up) scanned in 6.86 seconds