Realizar un escaneo de puertos básico (nmap -F captivatereg.com)
Nmap scan report for captivatereg.com (198.185.159.144)
Host is up (0.038s latency).
Other addresses for captivatereg.com (not scanned): 198.49.23.144 198.49.23.145 198.185.159.145
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 2.24 seconds