Realizar un escaneo de puertos básico (nmap -F gripp.com)
Nmap scan report for gripp.com (83.217.83.37)
Host is up (0.25s latency).
rDNS record for 83.217.83.37: 83.217.83.37.static.hosted.by.combell.com
Not shown: 97 filtered ports
PORT STATE SERVICE
21/tcp open ftp
80/tcp open http
443/tcp open https
Nmap done: 1 IP address (1 host up) scanned in 6.49 seconds