Enable global authentication with ASP.NET MVC and Identity

To require user authentication for all action methods on all controllers please add the AuthorizeAttribute class to the App_Start/FilterConfig.cs file:

public static void RegisterGlobalFilters(GlobalFilterCollection filters) 
{ 
    filters.Add(new AuthorizeAttribute()); 
}

To configure an exception and allow anonymous access to an action method: Decorate it with the AllowAnonymousattribute:

[AllowAnonymous]
public ActionResult Index()
{ 
    // do stuff
}