Realizar un escaneo de puertos básico (nmap -F rebinyn.com)
Nmap scan report for rebinyn.com (72.3.137.119)
Host is up (0.033s latency).
Not shown: 98 filtered tcp ports (no-response)
PORT STATE SERVICE
80/tcp open http
443/tcp open https
Nmap done: 1 IP address (1 host up) scanned in 2.09 seconds