Shut down key combination guides?

User Support General
1

I would like to find guides on how to create(or enable/find)
key combinations that will:

Instantly turn off and wipe my computer after pressing them.

Or if possible to set up a flashdrive that when pulled out will do the same. A kill switch of sorts.

2

Has some information for making all data unusable if you have LUKS dm-crypt/Drive preparation - ArchWiki

I would write my own script that runs when specific combination is pressed, how to do that not sure in xfce, maybe someone else or google can assist with that. I would just recommend i3.

For the usb kill switch, there is buskill I think the name was which does what you want. But recommend doing it yourself, maybe udevadm might assist with detection of usb devices.

3

https://docs.xfce.org/xfce/xfce4-settings/keyboard#application_shortcuts

2 Likes
4

Hi, I have this set up. I used the following guide:

ctrl-f “Emergency Shutdown Script”
http://blog.nowherejezfoltodf4jiyl6r56jnzintap5vyjlia7fkirfsnfizflqd.onion/opsec/livemode/index.html


First we need to make sure the user is able to run the shutdown command:


nothing@debian:~$ su -
Password: 
root@debian:~# visudo


[...]

nothing ALL=NOPASSWD:/sbin/shutdown
nothing ALL=NOPASSWD:/sbin/reboot

[...]

Then we create a simple shutdown.sh script:


nothing@debian:~$ vim shutdown.sh
nothing@debian:~$ cat shutdown.sh 
#!/bin/bash

/sbin/shutdown -h now

nothing@debian:~$ chmod +x shutdown.sh

Then bind the keyboard shortcut to: /sbin/shutdown -h now

Hope this helps someone