Configure static IP address netplan on Ubuntu 18.04

Configure static IP address using Netplan

Netplan network configuration had been first introduced to Ubuntu 18.04 LTS Bionic Beaver. It is available to all new Ubuntu 18.04 installations. 

Depending on your Ubuntu installation Netplan may not be avaiable on upgraded Ubuntu systems.
configure a static IP address for your network interface using  /etc/network/interfaces

Ubuntu 18.04 has used Netplan, netplan is a utility that can simplify network configuration, you only need to create a configuration file in yaml in the directory / etc / netplan, the netplan uses 2 renderers, namely NetworkManager and Networkd, we will use the networkd renderer because of networkmanager renderer usually used for desktop users.

To configure a static IP address on your Ubuntu 18.04 server you need to modify a relevant netplan network configuration file within /etc/netplan/ directory. 

For example you might find there a default netplan configuration file called 01-netcfg.yaml or 50-cloud-init.yaml with a following content instructing the networkd deamon to configure your network interface via DHCP:

user $ sudo nano /etc/netplan/enp0s3.yaml

Configuration DHCP :
# This file describes the network interfaces available on your system # For more information, see netplan(5). network: version: 2 renderer: networkd ethernets: enp0s3: dhcp4: yes

To set your network interface enp0s3 to static IP address 192.168.1.222 with gateway 192.168.1.1 and DNS server as 8.8.8.8 and 8.8.4.4 replace the above configuration with the one below.

# This file describes the network interfaces available on your system # For more information, see netplan(5). network: version: 2 renderer: networkd ethernets: enp0s3: dhcp4: no addresses: [192.168.1.122/24] gateway4: 192.168.1.1 nameservers: addresses: [8.8.8.8,8.8.4.4]

Once ready apply changes with:

$ sudo netplan apply

In case you run into some issues execute:

$ sudo netplan --debug apply