Hi Guys
I have a tricky situation where I need some informations, tips, tricks and maybe support from you …
I have 2 physical servers:
Server 1: At the moment this one is a Virtualmin system with about 30 domains running. All these domains belongs to my customers and need to be running 24h a day.
Server 2: Here I installed Cloudmin and a virtual Virtualmin system where no domains are running at the moment. The virtual Virtualmin system is DNS Cluster Slave Server for Server 1
Server 3: A Webmin server which is configured as DNS Cluster Slave server for Server 1
Server 4: A Webmin server which is configured as DNS Cluster Slave server for Server 1
My goal is:
- I want to reconfigure Server 1 from a Virtualmin server to a Cloudmin server
- The Virtualmin installation on Server 1 should be running after all work is done as a virtual machine on Cloudmin on Server 1
- The Vitrualmin Machine running on Server 1 should be replicated several times a day to Server 2
- In case of a emergency I should be able to switch fast and easy all domains via DNS entry from Virtual Machine on Server 1 to Virtual Machine on Server 2
Which steps do I think I need to achieve this goal:
- First I need to move all Domains, settings, Files and everything which belongs to my customers from Server 1 to <Server 2
- Then I need to change all DNS to point to the new Virtualmin on Server 1 so that my customers don’t have any interruptions
- After this is completed I need to deinstall Virtualmin on for Server 1
- Then I need to install Cloudmin on Server 1
- Then I need to install a Virtual machine with Virtualmin on Server 1
- After that I want to configure Cloudmin to do a replication of these 2 virtualmin installations
What are my questions now:
- First of all: Will this scenario with replicating between those 2 virtualmin systems work as I expect this? Maybe is there another (easier) methods to achieve this goal?
- I have found this document for moving from a Virtualmin installation to another Virtualmin installation:
https://www.virtualmin.com/documentation/system/migrate … this should be no problem and should work for my case …
- After that how can I tell Virtualmin (and all other Cluster Slave Server) that Server 1 won’t host DNS Master Zone anymore and that all Master Zones were transfered to Server 2?
Thanks for you help!
Best Regards
Dominique