System Administration Guide, Volume 1

Disable User Accounts

Occasionally, you might need to temporarily or permanently disable a login account. Disabling or locking a user account means that an invalid password, *LK*, is assigned to the user account, preventing future logins.

The easiest way to disable a user account is to use Admintool to lock the password for an account. You can also enter an expiration date in the Expiration Date field to set how long the user account is disabled.

Other ways to disable a user account is to set up password aging or to change the user's password.