Child domain (3.3.5)

To understand the child domain, let's illustrate it with a real tree. A tree consists of roots, a trunk, branches, and leaves. Then, in our illustration, if we rotate the tree with the roots above and the leaves below, we conclude that the parent domain is the root, and the child domain is its branches. This, as a whole, constitutes a tree domain. Furthermore, many tree domains of this kind constitute the forest. From the above examples, PacktBiz.local represents a forest, ITBooks.local represents a tree domain within the forest, and SysAdmin.ITBooks.local represents a child domain within the tree domain. To set up the child domain in Windows Server 2016, use almost the identical steps for setting up the tree domain earlier using the Active Directory Domain Services Configuration Wizard, as shown in Figure 4.9:

Figure 4.9. Setting up a child domain in Windows Server 2016