Ensure that you have configured one or more host name aliases for your system.
To configure one or more host name aliases on UNIX systems:
Provide the configuration for the hosts in /etc/nsswitch.conf file:
hosts: files dns nis
This configuration indicates to the name service the lookup order it should use to resolve host names and host aliases. The name service lookup order is: files, dns, and nis.
Ensure that the /etc/hosts file contains two or more host names defined against your machine’s IP address.
For example, if your system IP address is 220.127.116.11, then in /etc/hosts file, you can configure the IP address as:
18.104.22.168 budgie.siroe.varrius.com budgie
22.214.171.124 budgie.siroe.varrius.com budgie loghost
Example of an incorrect IP address: