Rename the Application variable 'pbkdf2_iterations' to...
Rename the Application variable 'pbkdf2_iterations' to 'pbkdf2_iterations_client' and add the 'pbkdf2_iterations_server' variable
Rename the Application variable 'pbkdf2_iterations' to 'pbkdf2_iterations_client' and add the 'pbkdf2_iterations_server' variable