Changing The Authentication Mode - US Robotics USR8700 User Manual

The group no longer appears in Groups.

Changing the Authentication Mode

Your storage system can operate in one of two modes:
• Local authentication mode
• Active Directory authentication mode
In local authentication mode, the storage system authenticates all users who try to connect to shared
folders, and you can add, modify, or remove all types of users. By default, the storage system uses local
authentication mode.
In Active Directory authentication mode, the Active Directory server authenticates all Windows and Mac
OS X users who try to connect to shared folders. You can use the Web User Interface to add, modify, or
remove Linux or other Mac users, but not Windows or Mac OS X users. In addition, you cannot create
groups. You must add Windows and Mac OS X users to your Active Directory server in order to provide
those users with access to shared folders on the storage system. All Windows and Mac OS X users and
groups are controlled entirely by the Active Directory server.
If you use Active Directory authentication mode, the User must change password at next logon check
box must be cleared in the properties for each user on the Active Directory server who will be accessing
shared folders on the storage system. In addition, each user's password can be no longer than 24
characters.
Active Directory authentication mode does not automatically include a guest user account. However, the
Active Directory administrator can create one on the Active Directory server.
With Active Directory authentication mode, the clocks of the storage system and the Active Directory
server must not differ by more than five minutes. Errors will occur whenever the storage system tries to
connect to the Active Directory server (such as when you set the authentication mode, when
synchronization between the two systems occurs, and when users access shared folders). The time
settings of the storage system must match the Active Directory server, as described in
System Settings" on page 69.
Even if the storage system and Active Directory server are in the same time zone and have the same time,
errors might still occur if the Active Directory server adjusts for daylight saving time. In this case, you must
change both the time zone and time on the storage system. For example, if the Active Directory server
time is 2:00 P.M. in the Central Time zone (GMT-06:00), you would set the storage system time zone to
Eastern Time (GMT-05:00) and then set the time to match the Active Directory server (14:00). If you do
this, do not synchronize the storage system with an NTP server, as the time is readjusted based on the
time zone.
You can change the authentication mode at any time, but you must provide the administrator password of
the storage system to do so.
Caution: Changing the authentication mode deletes all your existing user data and shared folder
assignments. However, if any users are currently accessing shared folders, they will remain
connected until they disconnect from the shared folders or shut down their computer.
Serial ATA 4-Drive NAS
User Guide
"Changing the
Managing Your Storage System - 53