Case study: user authentication

Derek Bridge

Department of Computer Science,
University College Cork

Case study: user authentication



How to restrict access to certain content

HTTP authentication
As for the CK401 web site:
  • Configure the server to send a 401 response to the client
  • The client prompts the user for a password, and sends it back to the server
PHP authentication by IP address
Your script can check whether the client's IP address is allowed to access the content
PHP authentication using a database of user names and passwords

MySQL database for feedback system

   user_name VARCHAR(50) NOT NULL,
   password VARCHAR(32) NOT NULL,
   PRIMARY KEY (user_name)