Nmap is a free, open-source tool for vulnerability scanning and network discovery.

first, it needs open nmap in Kali Linux and type nmap -l team2.pentest.id :

based on that figured, it get the informations about which port is open.

and also it could check with this command nmap – v 68.183.184.165 (ip form team2.pentest.id :

nmap -A 68.183.184.165 ==>