Installing a Child domain
In “Installing a replica domain controller,” you added a DC to an existing domain. With all the prerequisites like DNS in place, the promotion process is simple and quick.
An AD forest can contain more than one domain, with one domain having zero, one, or more child domains. This architecture provides for delegated administration and reduction in replication traffic across a global network. Like creating a replica DC, creating a new child domain is simple, as you can see in this recipe.
Best practice calls for a contiguous namespace of domains, where the additional domain is a child of another existing domain. In this recipe, you create a child domain, UK.Reskit.Org. You begin with the domain joined server UKDC1 and with this recipe, covert it to be the first DC in a new child domain UK.Reskit.Org. In doing so, the hostname changes from UKDC1.Reskit.Org to UKDC1.UK.Reskit.Org.
The steps in this recipe are very similar to those in “Installing...
