Question 112464 in Ubuntu Question posted in
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Restrict Ubuntu user permissions

I am using Ubuntu 20.04 to host my application. The device that hosts the application will deliver to the client, meaning I would like to strip the regular desktop user from every permission.
After a research, I added to the user .bashrc file false aliases something like:

alias ls="printf ”"

The problem is that the user can still write every command under a specific path:

bin/su
bin/cd

This way he has complete power over the system. I would love to get some help with this issue.
Thank you all!

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2

Answers


  1. Chosen as BEST ANSWER
    0

    solution for restrict the terminal Create a group for terminal users

    addgroup terminalusers
usermod -a -G terminalusers <user>
chown root:terminalusers /usr/bin/mate-terminal
chmod 750 /usr/bin/mate-terminal

    After this process, the terminal would be blocked Buenos - you can block every application you want with the command which


  2. 0

    This should do

    addgroup <group-username>
usermod -a -G <group-username> <user>
chown root:<group-username> /usr/bin/<terminal-name>
chmod 750 /usr/bin/bash #permissions can be as per requirement like 760 etc

    Ubuntu uses bash. On other distros we may have to see which shell and terminal they use e.g. gnome version of ubuntu has gnome terminal and bash. Kali has zsh (which I think is better).

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