To work through the guidance provided in this chapter, we need to arrange some preparation tasks. You need to provide an additional public DNS suffix (which in my case is azureid.ch
) that represents YOURDOMAIN2.COM
. We need to add this other domain as a custom domain in the first Azure AD tenant (YOURDOMAIN1.ONMICROSOFT.COM
), which we used in Chapter 2, Understanding Identity Synchronization:
Use the following steps to start the configuration:
- Open the Azure Portal: https://portal.azure.com.
- Navigate to the Azure AD blade.
- Click
Custom domains.
- Click
Add custom domain.
- Use your additional domain name:
![](https://static.packt-cdn.com/products/9781789132304/graphics/3d2395ba-3217-4c45-92ab-68b259e881e9.png)
Adding a custom domain
- Configure your public DNS to represent the following verification entry:
![](https://static.packt-cdn.com/products/9781789132304/graphics/a3a4bab2-3dc4-433d-8874-a1ac999ca5d6.png)
Custom domain verification
- Click
Verify
. - The following result is expected:
![](https://static.packt-cdn.com/products/9781789132304/graphics/98a4ed98-0fb8-4f34-941e-22ee6452f9af.png)
Verified domains overview
The following diagram shows the complete lab environment we'll use in this book:
![](https://static.packt-cdn.com/products/9781789132304/graphics/2f5e51cd-f380-431d-b97b-775c4d14a672.png)
Lab environment overview
Furthermore, we need to configure a new Active Directory Forest that uses...