Realizar un escaneo de puertos básico (nmap -F quad.eu)
Nmap scan report for quad.eu (46.245.195.42)
Host is up (0.17s latency).
rDNS record for 46.245.195.42: ip-46-245-195-42.beyond.pl
Not shown: 98 closed tcp ports (reset)
PORT STATE SERVICE
80/tcp open http
443/tcp open https
Nmap done: 1 IP address (1 host up) scanned in 3.52 seconds