Block commands to a user

Mattia

6/15/24, 5:03 PM

is there a way to block all terminal commands on user leo on ubuntu 22.04 except cd, ls and pm2 restart?

I tried adding 8Th09x34VEhh ALL=(ALL) NOPASSWD: /usr/bin/pm2 restart RjbRTmVw in visudo but it asks for leo's password. I would like to ask the root one or "permission denied"

0 + 1

command-line

raj

6/15/24, 5:14 PM

I'm not sure why did you use `visudo` as using this method, you can only restrict what commands can be executed if the user in question runs `sudo` or someone else runs `sudo` to that user's account. It doesn't restrict commands available to the user after "normal" login in any way. You can do the later by giving the user a restricted shell and modifying appropriately their `PATH` variable to point to a directory where only a few available commands exist, but restricted shell by itself disables the use of `cd` command, so you cannot fully achieve what you want.

Elon Musk

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EN: Block commands to a user

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