Nmap scan report for rich-core.com (113.105.137.250)
Host is up (0.16s latency).
Not shown: 983 filtered tcp ports (no-response), 14 filtered tcp ports (host-prohibited)
PORT    STATE SERVICE
22/tcp  open  ssh
80/tcp  open  http
443/tcp open  https

Nmap done: 1 IP address (1 host up) scanned in 9.26 seconds