DoubleSight PC EXPANION Bedienungsanleitung PDF herunterladen (Seite 38)

In order to disable the write filter, an administrator

must log on to that particular machine and double click the

green dot, which will cause the machine to reboot. Once it

reboots, the red dot will show, indicating that changes can

now be made to the system. The write filter is enabled

again by clicking on the red dot, which reboots the system

once more, saving any changes made during maintenance.

Before the WDM software was introduced, any required

changes made to the thin clients in the smart classroom were

conducted in this manner. The write filter was disabled at

each machine, required maintenance was performed, and the

EWF was once again enabled. Not only was this process time

consuming, but it gave way to a margin for error. If an

administrator forgot to enable the write filter, the system

would be open to student tampering, which could result in

significant damage to the thin client.

The workgroup version of WDM software was selected for

use for experiments involving remote configuration and can

be downloaded at no charge from the Wyse Corporation’s

website. It supports a network of up to 750 thin clients;

however, upgrades can only be administered to five clients

at once, which is one of the most prominent limitations of

this version of WDM.

There are two ways to remotely configure thin clients

through WDM; either by re-imaging the entire system or

selective package application. However, one of the dangers

involved in applying an image across the system is that once

Schearer, Captain Steven A., “Remote Administration of Wyse S90

Thin Client Computers”, Naval Postgraduate School Directed Study. 24

April 2007.

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DoubleSight PC EXPANION Bedienungsanleitung Seite 38