Mastering Active Directory - Second Edition

Multiple federation servers and multiple Web Application Proxy servers with SQL Server

So far, we have looked into models that benefit from easy implementation and improved security. But this model is focused on high availability. Each role will be configured with NLB clusters. The AD FS database will be hosted in the SQL Always On cluster environment for high availability. This model is ideal for SPs and other businesses that work with high volumes of AD FS requests.

The NLB cluster is a software-based load balancing solution that comes with the Microsoft server OS. It is easy to implement with no additional licenses. However, hardware load balancers provide higher performance and fewer dependencies.

The following diagram provides a sample ...