### Advanced password policy This feature lets you define the requirements for operator passwords. On the System Configuration tree, select System Settings. On the Security tab under Operators, enter information in the fields described below. NOTE See System Settings for information on all the other fields.
Field | Notes
--- | ---
Use advanced password policy | Enable this field to define rules for passwords. An operator’s login name and password must be different when this policy is enabled. After you change the password policy, any operator whose password doesn't meet the new requirements will not be locked out of the system, but will be prompted to create a new password.
Passwords must contain | You can specify how many characters and which of the following types of characters a password must contain: Numbers Special characters—any keyboard character that is not a number or letter. Letters—uppercase, lowercase, or both.
Cannot be changed more than once every __ days. | Enter a number to limit how often users can change their passwords. When set to 0, users can change them as often as they want.
May not be reused until __ different passwords are used. | Enter a number between 1 and 20. Enter 0 to reuse passwords without a delay.
Expire after __ days | Enable to set the number of days an operator can use his password before the system requires him to change it. Enter a number between 1 and 999.
Force expiration | Click this button to force every user's password to expire. Each user will be prompted to change their password when they next attempt to log in to the WebCTRL® interface.
NOTE The Advanced password policy settings do not synchronize across hierarchical servers. You should set up each system with the same advanced password settings to avoid problems when navigating between the systems.