Realizar un escaneo de puertos básico (nmap -F zetes.com)
Nmap scan report for zetes.com (212.35.97.188)
Host is up (0.14s 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 6.43 seconds