Realizar un escaneo de puertos básico (nmap -F qtsdatacenters.com)
Nmap scan report for qtsdatacenters.com (4.156.120.204)
Host is up (0.060s latency).
Not shown: 98 filtered tcp ports (no-response)
PORT STATE SERVICE
80/tcp open http
443/tcp open https
Nmap done: 1 IP address (1 host up) scanned in 4.21 seconds