http://blogs.technet.com/b/tothesharepoint/archive/2010/07/22/whitepaper-configuring-kerberos-authentication-for-sharepoint-2010-and-sql-server-2008-r2-products.aspxHello, this is Norm, IT Pro writer for business intelligence in Microsoft SharePoint 2010 Products. Kerberos is often used in business intelligence solutions to establish secure access to external data sources such as Microsoft SQL Server . Last weeken-USTelligent Evolution Platform Developer Build (Build: 5.6.50428.7875)