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I'd like to know if there is any alternative to Deep Freeze for Linux that still under development, because I've read some things on the internet and looks like the same company which developed Deep Freeze had a Linux version of it, but the project was discontinued.

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Why would you want that? Just don't allow non-root users to change system files. – David Foerster Sep 24 '13 at 22:07
@DavidFoerster I just edited the question to answer your commentary. – Zignd Sep 24 '13 at 22:11
Hi you can try this alternative – user189499 Sep 24 '13 at 22:26
Normal (out-of-the-box) "guest" users in (recent?) Ubuntu are created on-the-fly, have their home in /tmp, and are cleaned up after logout... isn't this sufficient? – Rmano Mar 20 '14 at 14:37
up vote 6 down vote accepted

OFRIS is an open source application that can freeze your Linux, it is like Deep Freeze in Microsoft Windows operating system.

For Ubuntu versions 9.10, 10.04 and 10.10. To Install OFRIS, just press Ctrl+Alt+T on your keyboard to open Terminal. When it opens, run the command(s) below:

sudo add-apt-repository ppa:tldm217/ -y
sudo apt-get update && sudo apt-get install ofris-en -y

For Ubuntu versions 11.04, 11.10, 12.04, and 13.04. To Install OFRIS, just press Ctrl+Alt+T on your keyboard to open Terminal. When it opens, run the command(s) below:


if [ $(uname -m) == "x86_64" ]; then deb=""; else deb=""; fi && wget -q $deb -O ofris.deb && sudo dpkg -i ofris.deb && rm ofris.deb

Image below shows OFRIS running on 13.04

enter image description here


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I installed this in 15.10 then i applied Freeze by pressing 3 it confirmed me system is in frozen mode. Then i rebooted, i made a file /var/tmp/myname with value, then again i rebooted but still the file is there. How is this freezing? – YumYumYum Mar 2 at 10:44
What do you exactly mean? Also I need to check to see if this works on 15.10. System freezing is reseting everything to the way it was before it was frozen. Please let me know. – Mitch Mar 2 at 11:15

By default Ubuntu and most other Unices deny regular users (students, guests) write access to system files. Only an administrator with the proper authorisation (username and key) can install software, change system settings, or delete partitions.

Regular users can, by default, only write in their home directory and the system's temporary directory. A common way to handle one-time guest sessions is to put their home directory inside the temp directory, and the temp directory in main memory.

If you want to make extra sure, mount the system partition read-only and lay an aufs partition over it that stores changes in main memory.

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