How to change shared public IP of Virtualmin for all domain hosts

Steps are pretty straight forward.

Step-1:

Under > Webmin > Networking > Network Configuration > Network Interfaces

You need your VM or server console access. Update the new IP with the old one from the correct interface. You will lose the connection. Reboot the server and re-login to webmin/virtualmin interface.

Step-2

Virtualmin > Addresses and Networking > Change IP Addresses > Change Real Address and simply inserting the new primary IP there.

It’ll take a while to update records of the old IP to the new one.

You’re done.