Fake login screens

Mackenzie Morgan macoafi at gmail.com
Sat Feb 14 23:12:25 UTC 2009

On Saturday 14 February 2009 5:43:20 pm Mario Vukelic wrote:
> On Sat, 2009-02-14 at 16:52 -0500, Mackenzie Morgan wrote:
> > 
> > And *YOU* are missing the point that Ctrl+Alt+Delete on Ubuntu
> > *already* does what Windows does when you hit Ctrl+Alt+Delete but are
> > actually already logged in: it asks if you want to log out.
> Nope it does not. The windows *kernel* intercepts C-A-D, user processes
> can't. It's specifically designed as a way to prevent fake login
> screens: pressing C-A-D *guarantees* a kernel-approved login.
> http://blogs.msdn.com/larryosterman/archive/2005/01/24/359850.aspx
> Guys, doing your homework before posting would make developers more
> likely to stay subscribed.

The point was just "a way to get logged out with a keyboard shortcut" but if 
you would like to still have it kill session, the kernel *does* intercept 
Alt+SysRq+K as pointed out a billion times already.  Seriously, we have a 
userspace and a kernelspace way around this one.

Mackenzie Morgan
apt-get moo
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 197 bytes
Desc: This is a digitally signed message part.
URL: <https://lists.ubuntu.com/archives/ubuntu-devel-discuss/attachments/20090214/62c5c224/attachment.sig>

More information about the Ubuntu-devel-discuss mailing list