Realizar un escaneo de puertos básico (nmap -F sabra.com)
Nmap scan report for sabra.com (65.151.153.72)
Host is up (0.053s 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 4.01 seconds