Several configuration options are specific to Forms authentication:
cookieless: Use Forms authentication when a browser does not support cookies.
Possible values are UseCookies, UseUri, AutoDetect, and UseDeviceProfile.
The default value is UseDeviceProfile.
defaultUrl: Set the redirected page after being authenticated.
The default value is Default.aspx.
domain: Domain associated with the authentication cookie.
The default value is an empty string.
enableCrossAppRedirects: authenticate users across applications by passing an authentication ticket in a query string.
The default value is false.
loginUrl: Set the path to the Login page.
The default value is Login.aspx.
name: specify the name of the authentication cookie.
The default value is .ASPXAUTH.
path: Set the path associated with the authentication cookie.
The default value is /.
protection: Set how the authentication cookie is encrypted.
Possible values are All, Encryption, None, and Validation.
The default value is All.
requiresSSL: Require a SSL (Secure Sockets Layer) connection when transmitting the authentication cookie.
The default value is false.
slidingExpiration: Prevent the authentication cookie from expiring as long as a user continues to make requests within an interval of time.
Possible values are True and False.
The default value is True.
timeout: Set the amount of time in minutes before the authentication cookie expires.
The default value is 30.