Forum Discussion
Confusion on adding a secondary domain controller.
I have server 2016 installed on a VM and I am doing an Active Directory course. I have installed Active Directory onto the server to create a new forest. Now a secondary domain controller must be add...
I still don't fully understand how this works but I will install Windows Server on a second Virtual Machine, install and set up Active Directory and then join it to the "existing domain". I think the idea here is to have two separate Active Directory installations running joined to the same domain, so one is a backup. Does that sound about right?
Windows active directory provides for a multi-master model. One would always want to have at least two domain controllers for high availability and disaster mitigation.
https://support.microsoft.com/en-gb/help/197132/active-directory-fsmo-roles-in-windows