Nmap scan report for renrenliao.com (43.198.158.44)
Host is up (0.15s latency).
rDNS record for 43.198.158.44: ec2-43-198-158-44.ap-east-1.compute.amazonaws.com
Not shown: 996 filtered tcp ports (no-response)
PORT     STATE SERVICE
22/tcp   open  ssh
80/tcp   open  http
443/tcp  open  https
9999/tcp open  abyss

Nmap done: 1 IP address (1 host up) scanned in 11.00 seconds