Realizar un escaneo de puertos básico (nmap -F id.nugs.net)
Nmap scan report for id.nugs.net (20.49.97.21)
Host is up (0.054s latency).
Not shown: 98 filtered ports
PORT STATE SERVICE
80/tcp open http
443/tcp open https
Nmap done: 1 IP address (1 host up) scanned in 5.79 seconds