This easy to use custom tag can be used for multiple sites on a single server. It will automatically set session variables for requested fields. It can be used on single or joined tables an includes a logout system. The generic login screen works for almost any website without any customization needed.
Passport is a multidomain user authentication system with password reset, basic information collection and user records update. If you are going to use it for one domain name portal, the encoded user related information will be delivered through domain cookies. Note: your web server does not need to be on the same domain to get the user authenticated. This application passes encrypted information through http request without using cookies. Just register your self, download demo on your server and play with that.