Does anybody know if it is possible to set up IIS authentication so that only people that have logged onto a certain domain can have access to a site? I am developing and Intranet site and I don't want users to have to log in again to access the site. I am going to have certain areas of the site accessible to certain users on our domain. So far I can't seem to find a way to make this happen without a user having to enter their password. If they are logged into their workstation and on our domain, then I want them to have access to the site.

Thanks for any guidance,
Mike