DNS delegation
In the previous chapter, when we were looking at the AD DS design, I explained child domain controllers and how they can be used to organize the company's AD hierarchy. When you create a child domain in a forest, it also creates its own DNS namespace. In a DNS infrastructure, sometimes, it is required that you divide the DNS namespace to create additional zones for better management. DNS delegation allows organizations to achieve this without the need to change the domain structure.
In AD-integrated DNS, you are allowed to create any DNS zone, and it will be replicated to other domain controllers. But there are situations where this can lead to administrative overhead. Rebeladmin Corp. uses rebeladmin.com as its AD DS domain name. They have a software development department that develops web-based applications.
In order to test their applications, they have to use a web URL. Every time they need to test something, they open a support ticket and the IT team...
