Add Extra IP addresses to server configuration On Ubuntu 17.10 and later

Each failover IP address will need its own line in the configuration file. The configuration file is called “50-cloud-init.yaml” and is located in /etc/netplan.

Determine Ubuntu NIC interface

Connect to your server via SSH and run the following command:

Create Ubuntu configuration Network file

Edit Ubuntu Network file using your favorite editor like nano

					nano /etc/netplan/50-cloud-init.yaml

Now, edit the file with the content below, replacing INTERFACE_NAME MAC_ADDRESS and FAILOVER_IP:

					    version: 2
            dhcp4: true
                macaddress: MAC_ADDRESS
            set-name: INTERFACE_NAME
            - FAILOVER_IP/32

Save and close the file. You can test the configuration with the following command:

Apply changes to Ubuntu Network

					netplan apply
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