This is a guide on how I have installed and configured NordVPN to work on Parrot OS
Open a terminal
sudo bash
sh <(curl -sSf https://downloads.nordcdn.com/apps/linux/install.sh
After it installs type
nordvpn login
Enter your username
Enter your password
Once you are logged in type
nordvpn set killswitch on
Select the countries to vpn through by typing
nordvpn countries
Select the country
nordvpn cities Vietnam
Hanoi – will be listed
Now type:
nordvpn connect Vietnam Hanoi
Once you are done with Nord type:
nordvpn disconnect