Realizar un escaneo de puertos básico (nmap -F cel.ro)
Nmap scan report for cel.ro (89.38.233.241)
Host is up (0.18s 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 5.70 seconds