Ubuntu Server 18.04 - Static IP - Netplan

netcfg.yaml

# Netplan static IP config Ubuntu Server 18.04
network:
  version: 2
  renderer: networkd
  ethernets:
    enp6s7:
      dhcp4: no
      dhcp6: no
      addresses: [xxx.xxx.xxx.xxx/xx]
      gateway4: xxx.xxx.xxx.xxx
      nameservers:
        addresses: [xxx.xxx.xxx.xxx, xxx.xxx.xxx.xxx]
    enp7s8:
      dhcp4: true
      dhcp6: true