sudo nano /etc/netplan/01-netconf.yaml

network:
  version: 2
  renderer: networkd
  ethernets:
    ens33:
      addresses: [10.6.0.84/16]
      gateway4: 10.6.0.1
      dhcp4: false
      nameservers:
        addresses: [10.6.18.234]

sudo netplan apply