Fake login screens

[Mackenzie Morgan]

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
http://ubuntulinuxtipstricks.blogspot.com
apt-get moo
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