Realizar un escaneo de puertos básico (nmap -F canon.de)
Nmap scan report for canon.de (20.113.157.133)
Host is up (0.15s 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 5.44 seconds