Realizar un escaneo de puertos básico (nmap -F att.jobs)
Nmap scan report for att.jobs (63.131.135.96)
Host is up (0.069s 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 3.17 seconds