nordvpn-cli
Install with:
sh <(curl -sSf https://downloads.nordcdn.com/apps/linux/install.sh)
Login to your account:
nordvpn login
Setting:
nordvpn whitelist add subnet 192.168.1.0/24
nordvpn set dns 1.1.1.1 1.0.0.1
nordvpn c sg