How can we give authentication to some pages in ASP.Net application in form authentication

keep the pages you want to give a in separate folder and place the following web.config file in that folder: &lt configuration &gt &lt system.web &gt &lt authentication mode="forms" / &gt &lt authorization &gt &lt allow users="?" / &gt &lt /authorization &gt &lt /system.web &gt &lt/configuration &gt The above web.config allows all anonymous users to access any .aspx page in that folder.