Realizar un escaneo de puertos básico (nmap -F fireengineering.com)
Nmap scan report for fireengineering.com (54.162.197.175)
Host is up (0.068s latency).
rDNS record for 54.162.197.175: ec2-54-162-197-175.compute-1.amazonaws.com
Not shown: 91 filtered tcp ports (no-response)
PORT STATE SERVICE
21/tcp closed ftp
22/tcp open ssh
80/tcp open http
443/tcp open https
1025/tcp closed NFS-or-IIS
1026/tcp closed LSA-or-nterm
1027/tcp closed IIS
1028/tcp closed unknown
1029/tcp closed ms-lsa
Nmap done: 1 IP address (1 host up) scanned in 2.15 seconds