Before install a RODC in a domain environment it need to meet the following requirements,
- Forest function level should be windows 2003 server or higher
- Needs at least one writable domain controller running windows server 2008 or higher
If forest have any DC running windows server 2003 we need to adjust permissions on DNS application directory partition to allow them to replicate to RODC. It can be done by running adprep /RODCprep from windows 2012 server installation disk \support\adprep folder.
In my demo setup i do have a domain called contoso. Before start lets check the forest function level.
- To do that, log in to the DC as domain admin and open "Server Manager"
- Then from tools click on "Active Directory Domains and Trust"
- Right click on domain and select "Properties"
As we can see here its runs with windows server 2012 R2 so we do not need to prepare domain
