Ideally, passwords should be changed regularly. This article describes how to setup password expiration using the User Manager application in Red Hat Enterprise Linux 5 or CentOS 5.
- Days before change allowed
Number of days from the last password change to allow another password change.
- Days before change required
Number of days from the last password change to require another password change.
- Days warning before change
Number of days before the expiry of the password to notify the user.
- Days before account inactive
Number of inactive days after the expiry of the password to deactivate the account. 0 means do not deactivate.
- chage login_name
modifies the password expiry information of the specified login name. You need root access to use this command.
- chage -l login_name
shows the password expiry information of the specified login name
displays the help information
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