Server installation creates two Linux user accounts; root and Administrator. You can use these fields to change the Linux Administrator account password.
These settings are only accessible if logged in via referred authentication or as the local Linux root. Therefore, when disabled, the setting can only be re-enabled by logging in using the local Linux root name and password.
Note that this is separate from the password for the IP OfficeAdministrator account. Whilst both accounts are given the same password during server ignition, this menu changes just the Linux account password. You can change the IP OfficeAdministrator account password through the IP Office security settings.