Hi,
Currently I have 3 DCs, (DC1 and DC2 with DNS and Domain controller roles installed, DC3 with DNS, Domain Controller and DHCP) running on windows server 2012, and I want to migrate them to Windows Server 2019, the requirements are keeping the same roles, hostnames and IP Addresses. I found this: https://docs.microsoft.com/en-us/answers/questions/61590/ways-to-seamlessly-migrate-an-existing-dc-windows.html and I would like to confirm if it could help me, or what should the steps be?
In what step should I change the hostname? and after changing it, do I need so apply anything else?
In case of any failure during the migration, what would be my rollback?
I hope you can help me to clarify.