Performing a basic port scan (nmap -F principalproject.org)
Nmap scan report for principalproject.org (141.193.213.20)
Host is up (0.00085s latency).
Other addresses for principalproject.org (not scanned): 141.193.213.21
Not shown: 96 filtered tcp ports (no-response)
PORT STATE SERVICE
80/tcp open http
443/tcp open https
8080/tcp open http-proxy
8443/tcp open https-alt
Nmap done: 1 IP address (1 host up) scanned in 2.01 seconds