What is Forms Authentication in Asp.Net

1.    In  Forms Authentication Asp.net only performs authentication using the data source defined by user. It is most suitable for commercial web application or internet based application.
2.     Client makes the request for secured web page.
3.       IIS will allow the user as anonymous and redirects the user to asp.net
4.     Now asp.net checks for forms authentication ticket, in absence sends login.aspx page to client. This page should be created by user and it should be also be in root directory of application.
5.        Client enters the required credentials and resubmits the same to asp.net (via IIS) Asp.net process the form and creates forms authentication ticket.
6.        Now Asp.net redirects secured page to user.