NordVpn Kill switch on Ubuntu 18.04

Set Static IP address

$ sudo nano /etc/netplan/50-cloud-init.yaml

network:

    ethernets:

        eth0:

            addresses: [#.#.#.#/24]

            gateway4: #.#.#.#

            nameservers:

                addresses: [1.1.1.1,1.0.0.1]

            dhcp4: false

            optional: true

    version: 2

Change the IP range with your actual server settings .

Install Programs

sudo apt-get install openvpn openssh-server unzip

Download OVPN Config files (NordVPN)

cd /etc/openvpn