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I've created a Ubuntu based environment for a public pc. Now I want to be able to prevent users from saving any changes (including 3rd party apication data such as office documents or browser data).

Is there a way to lock the user from making these changes, or better yet restore the system to default on shutdown.

All I can find are ways to disable persistence on a usb

Henry
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  • Google Ubuntu guest user. It is a lightdm thing. – C.S.Cameron Feb 23 '19 at 03:49
  • Attached is about adding a guest user to a Persistent drive but may offer hints for a Full install also. The guest user setup can be modified by root. https://askubuntu.com/questions/946919/add-guest-user-to-persistent-flash-drive – C.S.Cameron Feb 23 '19 at 04:06

1 Answers1

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Add a Guest User to Ubuntu 18.04

  • Install lightdm:

    sudo apt-get install lightdm

  • At popup select lightdm as display manager.

  • After install run:

    sudo gedit /usr/share/lightdm/lightdm.conf.d/50-disable-guest.conf

  • Change: allow-guest=true.

  • On next boot there will be a guest user, no changes will be saved during the session.

  • The administrator may change settings and add programs.

Customize Guest Session

Sumeet Deshmukh
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C.S.Cameron
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