Set, --User <User Name; Guestmode [--Enable, --Disable]; Authenticate --Help - Dell DR4000 Reference Manual

--set, --user <user name>
To set the password for an existing local CIFS workgroup user, enter the
following command string at the system prompt, and provide and confirm the
new password:
administrator@mydr4000 > authenticate --set --user
administrator2
Enter new password for CIFS user administrator2:
Re-enter new password for CIFS user administrator2:
Changed administrator2's password.
NOTE:
The DR4000 system administrator that manages the DR4000 system has a
different set of privileges than does the CIFS user administrator. For example, only
the DR4000 system administrator can change the password for the CIFS user
administrator.

--guestmode [--enable, --disable]

To configure all CIFS shares for guest-only access, enter the following
command string at the system prompt:
administrator@mydr4000 > authenticate --guestmode --enable
Restarting Windows Access Server... done.
To disable all CIFS shares as guest-only access, enter the following command
string at the system prompt:
administrator@mydr4000 > authenticate --guestmode --disable
Restarting Windows Access Server... done.

authenticate --help

To display the list of all authenticate-related options for reference when using
the CLI, enter the following command string at the system prompt:
administrator@mydr4000 > authenticate --help
Usage:
authenticate
authenticate
22
Managing the DR4000 System
--show
--join --domain <domain name>
[--ou <org-unit name>]
--user <user name>