| Installing a Read Only Domain Controller (RODC) |
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To install a read only domain controller (RODC) on a full installation of Windows Server 2008 follow these steps:
1. Run DCPROMO.
![]() 2. If the Active Directory Domain Services binaries are not installed, they will be installed automatically.
![]() 3. The Active Directory Domain Services wizard will start.
Tick "advanced mode installation" and click Next.
![]() 4. Review the warning that older versions of Windows may be affected by the more secure security settings of 2008 domain controllers. Click Next.
![]() 5. Select Existing forest, and Add a domain controller to an existing domain. Click Next.
![]() 6. Enter the domain and domain admin credentials to install the domain controller. Click Next.
![]() 7. Select the domain. Click Next.
![]() 8. Select the site for the domain controller. Click Next.
![]() 9. Select the DNS Server, Global Catalog and Read-only domain controller (RODC) options. Click Next.
![]() 10. Specify the password replication policy. Click Next.
If you have any special password replication requirements such as specific server admin passwords need to be replicated, set them here.
![]() 11. Create a security group for administrators of RODCs.
Create the group on an existing domain controller.
![]() 12. Delegate the installation and administration of the RODC to the new security group. Click Next.
![]() 13. Choose to replicate the data from an existing domain controlller or from media. Click Next.
![]() 14. Select the domain controller to install from. Click Next.
![]() 15. Set the location for the Database, Log files and SYSVOL folders. Click Next.
![]() 16. Set the Directory Services Restore Mode password. Click Next.
![]() 17. Review the summary and export the settings if required. Click Next.
![]() 18. The domain controller installation will start.
Tick "Reboot on completion" to reboot when the promotion is complete.
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