Effectuer une analyse de port de base (nmap -F erebor.douban.com)
Nmap scan report for erebor.douban.com (81.70.125.19)
Host is up (0.16s 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 7.38 seconds