Authentication is the process of validating a user on the credentials (username and password) and authorization performs after authentication. After Authentication a user will be verified for performing the various tasks, Its access is limited it is known as authorization. Authentication – It is a process to verify the user’s identity. Authorization – It is a process to allowing an authenticated user to access the resources. This is use in web.config file always. <authentication mode =”None” /> “None” No authentication is performed. “Windows” IIS performs authentication (Basic, Digest, or Integrated Windows) according to its settings for the application. Anonymous access … Click here to continue reading.