Server-2012-r2 AD sub domain controller (ii)

1. Server-2012-r2 AD deployment (a), which has been built a good first domain controller, now deploying a second domain controller, to achieve the primary and secondary backup.

2. Server-2012R2 installed system, a fixed IP address to configure the system. As shown below
   
   

3. The sub-set domain controller computer name: dc02, and added abcd.com domain, and then restart.
   
   
   
   

4. After the server restarts, add roles, the Active Directory Domain Services, can refer https://blog.51cto.com/11728495/2474258  step 3 to step 9

5. This server is promoted to a domain controller server
   
   

6. Began deploying a second sub-domain control. Join an existing domain controller server
   
   

7. Domain Controller option. Set Restore Password
   
   
   

8. Other options, copy the information from the primary domain controller
   
   

9. The default file path
   
   

10. The default view options
    
    

11. Click to install prerequisites are met, automatically restart after the completion of
    
    

12. Open active directory users and computers
    
    

13. Check whether domain controllers have two computers
    
    

14. This sub-domain controller server has been installed and configured. And real time synchronization, when a hung up, the other one can continue to run to act as the domain controller.