Performing a basic port scan (nmap -F cit.nih.gov)
Nmap scan report for cit.nih.gov (156.40.178.17)
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 3.19 seconds