Realizar un escaneo de puertos básico (nmap -F firmdale.com)
Nmap scan report for firmdale.com (45.137.48.2)
Host is up (0.13s 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 7.90 seconds