5- Windows Server 2022 Adding Additional Domain Controller To Existing Domain Or Forest -

Now that the new server is a DC, change its Preferred DNS to 127.0.0.1 (itself) and set the Alternate DNS to your first DC. Pro-Tip: The "Forgotten Step"

Keep and Global Catalog (GC) checked (standard practice for redundancy).

Choose a strong password and store it in your vault. You’ll only need this if AD breaks and you need to perform "surgery" in Safe Mode. Now that the new server is a DC,

Building an additional Domain Controller (DC) isn’t just about redundancy; it’s about ensuring your network never has a "bad day." Think of it as hiring a second manager for a busy office—if one goes on vacation (or crashes), the other keeps the business running without anyone noticing.

Don't forget to update your ! Your client computers should now have both DC IPs listed as their DNS servers. This ensures that if DC1 goes down for updates, your users can still log in and reach the internet. You’ll only need this if AD breaks and

Note: This only installs the "books." We still need to "open the library." Phase 3: The Promotion (The Fun Part)

Before you touch the AD DS role, your new server needs a solid foundation. Your client computers should now have both DC

Open Command Prompt and type repadmin /showrepl . If you see "Successful," your DCs are officially talking.