Creating Domain Trees and Forests

So far this chapter has covered some important reasons for using multiple domains in a single network environment; now it’s time to look at how to create multidomain structures like domain trees and domain forests.

Regardless of the number of domains you have in your environment, you always have a tree and a forest. This might surprise those of you who generally think of domain trees and forests as belonging only to Active Directory environments that consist of multiple domains. However, recall that when you install the first domain in an Active Directory environment, that domain automatically creates a new forest and a new tree.

In the following sections, you will learn how to plan trees and forests as well as see how to promote domain controllers to establish a tree and forest environment.