How to Add an IP Address on Ubuntu 18.04 using Netplan?

We can configure IP Addresses on Ubuntu 18.04 using Netplan while adding an IP Address in the older versions is a different method. 

Ubuntu 18.04 uses Netplan to configure IP Addresses. Therefore, we will use a YAML file instead of the /etc/sysconfig/network-interface to add IP Addresses.  

You will find the default configuration in the /etc/netplan/ directory. 

1. Find the default network configuration file using this command -  

$ ls /etc/netplan/ 

2. It is a default network configuration YAML file.
    Open it using this command – 

$ cat /etc/netplan/50-cloud-init.yaml

3. You will see the ethernet card (enp0s1); you must configure the IP Address here.

4. Take the backup of the 50-cloud-init.yaml file before making any changes.

$ sudo cp /etc/netplan/50-cloud-init.yaml /etc/netplan/50-cloud-init.yaml.bak

5. Configure IP Address on ethernet card (enp0s1) using the below details – 

• IP address for enp0s1: 192.168.0.1 (your IP Address)
• Gateway: 192.168.0.0
• Netmask: 255.255.255.0
• DNS servers: 8.8.8.8 and 8.8.4.4.
  

6. You can use space to make the alignment as per the shown image -

7. Save the file using Ctrl + x.

8. Apply the network configuration using this command –  

$ sudo netplan apply

9. Check your IP Address with this command – 

$ ip addr