Two Virtualmin Servers

I was wondering if I can duplicate my Virtualmin Server to another server without downtime so if anything happens i will just change the ip address.

On my first server is CentOs Linux 6.10 Virtualmin version 6.03.gpl - Production
On my second server is CentOS Linux 7.5 Virtualmin version 6.03.gpl - Standby (incase anything happens backups are uploaded here)

I can just restore my backups (24hr backup) incase anything happens.

What I’m thinking is like rsync the files needed to the other server like folders /home /etc and others but there are dependencies and just trash my backup server.

Any other thoughts?