Secure Global Desktop Administration Guide > Applications, documents and hosts > Using shadowing in the classroom

Using shadowing in the classroom

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  • Learn how to configure application objects for use in a "virtual classroom".

You can use Secure Global Desktop shadowing to create a "virtual classroom" where the "pupils" in the classroom shadow an application being demonstrated by a "teacher".

To be able to do this, you have to create a teacher's application object and a "classroom" application object.

Creating the teacher's application object

  1. In Object Manager, create a new Windows or an X application object.
  2. Configure the object how you want.
  3. On the Advanced attributes panel, type one of the following in the Login Script box:
  4. Click Apply.
  5. Select the application servers that can run the application, by dragging host objects on to the Hosts tab of the application object.
  6. Add the application to the teacher's webtop by dragging the application object on to the Links tab for the teacher's person object.

Creating the classroom application

  1. In Object Manager, create a new X application object.

    Note The classroom application is an X application even if the teacher's application is a Windows application.

  2. In the Application Command box type:

    /opt/tarantella/bin/bin/ttashadow
  3. In the Arguments For Command box type:

    -readonly -silent -pointer $SHADOWDISPLAY
  4. From the Color Depth list select 16-bit - thousands of colors.
  5. On the Advanced attributes panel, type pupil.exp in the Login Script box.
  6. On the Advanced attributes panel, type the following in the Environment Variables box:

    MYCLASS="TFN_name_of_teacher's_application"

    for example, MYCLASS=".../_ens/o=Indigo Insurance/ou=Finance/cn=XClaim"
  7. Configure the application object in any other way you want.
  8. Click Apply.
  9. Select the application servers that can run the application, by dragging host objects on to the Hosts tab of the application object. The ttashadow application is only available on hosts where Secure Global Desktop is installed.
  10. Add the application to the webtops of all users in the class by dragging the application object on to the Links tab for the person/profile object(s).

Notes

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