Azure AD federation with AD FS
Azure AD supports various integration methods with on-prem Active Directory. We can configure federation between on-prem AD FS and Azure AD to enable integration between two systems. When federation sign-in is in place, users can log in to Azure AD using the same on-prem Active Directory user name and password. This method ensures the user authentication occurs on-prem. We can use Azure AD Connect to configure the federation. During the configuration process, we can either deploy a new AD FS server/farm or configure existing AD FS servers. In this section, I am going to demonstrate how we can configure federation sign-in between AD FS and Azure AD. Before we go into that, it is important to understand how exactly the federation sign-in method works.
Federation sign-in with Azure AD
Figure 14.20: How AD FS federation works with Azure AD
Rebeladmin Inc. has federation between Azure AD and on-prem AD FS. The user Mark is trying to access...