Nmap scan report for renrenru.com (38.11.132.73)
Host is up (0.15s latency).
Not shown: 981 filtered tcp ports (no-response), 15 filtered tcp ports (host-prohibited)
PORT     STATE  SERVICE
22/tcp   closed ssh
80/tcp   open   http
443/tcp  open   https
5678/tcp closed rrac

Nmap done: 1 IP address (1 host up) scanned in 9.73 seconds