Nmap scan report for qtud.csdlcbcs.vn (104.18.4.40)
Host is up (0.00100s latency).
Other addresses for qtud.csdlcbcs.vn (not scanned): 104.18.5.40 2606:4700::6812:528 2606:4700::6812:428
Not shown: 96 filtered tcp ports (no-response)
PORT     STATE SERVICE
80/tcp   open  http
443/tcp  open  https
8080/tcp open  http-proxy
8443/tcp open  https-alt

Nmap done: 1 IP address (1 host up) scanned in 2.34 seconds