# IIS Authentication?

 Wiki Link: [discussion:84794]
 alexk2 Feb 11, 2010 at 1:56 PM Hi, A bit confused as to authentication, the install guide for IIS tells me to disable anonymous access but if I do that on IIS 7 it leaves no authentication modules active so of course I get 401 - Unauthorized: Access is denied due to invalid credentials. What (IIS) authentication type do I need for the site? Thanks. omegaspecter Feb 11, 2010 at 3:07 PM Windows Authentication.  If you don't see if in the list, then you don't have the right features installed. (I do not remember what to install to get it as an option.) alexk2 Feb 12, 2010 at 10:24 AM Great, thanks, I was forgetting to use domain\user.