Connecting VM to the Internet.

For Ubuntu 22.04, 20.04 and 18.04

Go to /etc/netplan and make a file called 1-netcfg.yaml

network:
  version: 2
  renderer: networkd
  ethernets:
    eth0:
      dhcp4: no
      dhcp6: no
      addresses:
        - address/32
      nameservers:
        addresses:
          - 208.67.222.222
          - 208.67.220.220
      routes:
          - to: 0.0.0.0/0
            via: 144.217.253.254
            on-link: true
      match:
        macaddress: maddress

Change the address to the VPS IP

Change the maddress to the Mac Address.

then do

sudo ip link set eth0 down
run the cmd again but with up
sudo ip link set eth0 up

sudo netplan apply 

sudo systemctl restart systemd-networkd

Then test by pinging 8.8.8.8

ping 8.8.8.8

and you should get traffic