Realizar un escaneo de puertos básico (nmap -F devler.io)
Nmap scan report for devler.io (165.227.243.47)
Host is up (0.014s latency).
Not shown: 97 closed ports
PORT STATE SERVICE
22/tcp open ssh
80/tcp open http
443/tcp open https
Nmap done: 1 IP address (1 host up) scanned in 1.64 seconds