This document covers the concepts of identity in SharePoint 2010 products, how Kerberos authentication plays a critical role in authentication and delegation in business intelligence scenarios, and the situations where Kerberos authentication should be leveraged or may be required in solution designs. It also covers how to configure Kerberos authentication end-to-end within your environment, including scenarios which use various service applications in SharePoint Server. Additional tools and resources are described to help you test and validate Kerberos configuration.