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I started to work with Excel Services in combination with data from Analysis Services. First I configured this all in 1 virtual machine, which was easy, because it just works. The next step was to get it working in a real world scenario at one of our customers. Here we have a SharePoint server which also runs Excel Services. Databases and the Analysis Services cubes are on a different machine. The requirement is that we need to impersonate the user to Analysis Services. To be able to do this you have to implement delegation of user account using Kerberos authentication (or SSO). NTLM is not enough, because the web server cannot delegate the current user to the SQL Server. This is also known as the double hop.
In this small series I will descibe all steps that I took to get it working in a virtual test environment. First I will describe the setup of my environment and after that I will describe the changes to the Active Directory.

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