Realizar un escaneo de puertos básico (nmap -F box.az)
Nmap scan report for box.az (94.20.74.2)
Host is up (0.23s latency).
rDNS record for 94.20.74.2: www.box.az
Not shown: 96 filtered ports
PORT STATE SERVICE
25/tcp open smtp
53/tcp closed domain
80/tcp open http
443/tcp open https
Nmap done: 1 IP address (1 host up) scanned in 8.76 seconds