Multiple domain controllers for redundancy

Now, having configured our first domain controller, we should jump in and start setting up objects inside Active Directory, right? Not yet! I'm being a little dramatic here, of course you can jump ahead and start using the tools that interface with AD, which we will discuss immediately following this section of our chapter. But if you are setting up a real environment and not just monkeying around in a test lab, it is going to be super critical that you establish redundancy in your domain.

Adding a second domain controller is even easier than spinning up the first one. Simply take the same steps that you did last time, with one exception to the way that the NIC is configured:

1. Spin up a new server.
2. Set a static IP.
3. Configure a good permanent hostname.
4. Deviation from before: Instead of configuring your NIC's DNS server settings to point at the new server itself, point your primary DNS to the existing...