title: Web Forms Windows Authentication w/ Remote SQL Database
body: <p>I have a ASP.NET 4.0 web application that uses Windows Authentication against AD and a SQL Server for Role management. </p>
  
  <p>Basically, I want all users who have an AD account to be able to access the application, but I want to further secure the app using roles in Sql Server. I do not want users to have to enter in their passwords for authentication.</p>
  
  <p>Is it viable for me to check authentication in the Global Application_Start method, or should I be executing this code elsewhere?</p>