Use the login authentication password-expire command to cause all local user passwords to expire after a specified number of days. For existing accounts, the expiration policy starts on the day you use this command; for new accounts, the expiration policy starts on the day they are created. Accounts with expired passwords are locked and require an administrator to reset the account using the username command. However, a user can change the password before it expires using the password command. Starting 10 days before password expiration, every time the user logs on a message appears, informing the user that the password will expire in n days.
