Dell Wyse ThinOS Version 8.5 Administrator’s Guide

Locking the thin client

To help ensure that no one else can access your private information without permission, ThinOS allows you to lock your thin client so that credentials are required to unlock and use the thin client after you do one of the following:

• Unplug a signed-on smart card — If an administrator has set SCRemovalBehavior=1for the signing parameter in the INI files and you unplug the smart card that you used to sign on to the thin client, then the thin client will lock. To unlock the thin client for use, you must use the same smart card and your correct PIN. Note that removing a signed-on smart card can also cause the thin client to log-off, if an administrator has set the INI files to do so in this case you must sign-on as usual to use the thin client.
• Use Lock Terminal from the Shortcut Menu and Shutdown dialog box — On the Classic Desktop, right-click on the desktop and select Lock Terminal, or use the Shutdown dialog box, see Classic Desktop features. On the Zero Desktop, use the Shutdown dialog box, see Signing off and shutting down. To use the thin client, you must use your correct password.
• Use the screen saver — If an administrator has set LockTerminal=2 for the ScreenSaver parameter, and when the screen saver is activated, then the thin client is locked. To unlock the thin client, enter the login password in the unlock dialog box. However, you cannot see the wallpaper while using the unlock dialog box.