LWN.net Logo

DRI3000

DRI3000

Posted Feb 22, 2013 19:35 UTC (Fri) by lindi (subscriber, #53135)
In reply to: DRI3000 by Serge
Parent article: LCA: The X-men speak

But how do you know that it is your session? That's the whole point of a secure access key. Somebody could have killed your session, logged in and started an imitation of the display manager login window.


(Log in to post comments)

DRI3000

Posted Feb 22, 2013 20:11 UTC (Fri) by Serge (guest, #84957) [Link]

> But how do you know that it is your session? That's the whole point of a secure access key.

If somebody logged in, disabled terminate sequence and started login screen emulation, you'll notice, that nothing happens when you press Ctrl-Alt-BS. :) But I agree that "Secure Access Key" (Alt+SysRq+K on Linux) is better for that, and it works both for text and X terminals. It's just some distributions disable Magic SysRq keys, while C-A-BS usually works everywhere during login screen.

DRI3000

Posted Feb 22, 2013 20:26 UTC (Fri) by lindi (subscriber, #53135) [Link]

Well, the fake login prompt can of course be programmed to react to ctrl-alt-backspace.

Copyright © 2013, Eklektix, Inc.
Comments and public postings are copyrighted by their creators.
Linux is a registered trademark of Linus Torvalds