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Enable X Security Extension (--securityextension)

Objects with this attribute

Object Manager

Attribute name Usage
Enable X Security Extension Check or clear the box.

Command line

Command optionUsage
--securityextension true|false Specify true or false.

Description

Whether to enable the X Security Extension for the application.

The X Security Extension divides X clients (hosts) into trusted and untrusted clients. Untrusted clients cannot interact with windows and resources owned by trusted clients.

If you need to run an X application from a host that may not be secure, you should enable the X Security Extension and run the application in untrusted mode. This restricts the operations that the X application can perform in the X server and protects the display.

To run an application in untrusted mode:

  1. Configure the X application to use SSH as the connection method.
  2. Configure SSH to allow X11 forwarding.

Note Object Manager and Array Manager do not work correctly in untrusted mode. Do not enable the X Security Extension for these applications.

The X Security Extension only works with versions of SSH that support -Y option.

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