Realizar un escaneo de puertos básico (nmap -F dovoba.de)
Nmap scan report for dovoba.de (194.149.253.43)
Host is up (0.17s 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 5.19 seconds