You can specify how the Web site is used-either from the Internet (publicly) or from an intranet (on a local area network). ...

You can specify how the Web site is used-either from the Internet (publicly) or from an intranet (on a local area network). This in turn indicates the type of authentication mode that the Web site will use. Internet Web sites use the ASP.NET membership system, where you define individual user accounts. ASP.NET uses a security system to restrict access to specific user accounts or the roles to which the user accounts belong. Intranet Web sites use Windows authentication, where users are identified by their Windows logon information.