On Mon, Mar 09, 2015 at 03:30:44AM -0600, Abel Abraham Camarillo Ojeda wrote: > On Mon, Mar 9, 2015 at 3:25 AM, Alex Greif <a...@greifdesign.net> wrote: > > Hi, > > > > I am currently trying to find a solution to lock my desktop system (openbsd > > 5.6, amd64), but with the following steps I can always bypass xlock or > > slock: > > > > - run X session with startx > > - lock it with xlock or slock > > - switch to text console 2 (with [CTRL]+[ALT]+[F2]) > > - switch to text console 1, where X server seems to run in foreground. The > > last message is (II) AIGLX: Suspending AIGLX clients fro VT switch > > ... now the problem begins... > > - CTRL-C a few times > > - xinit is killed > > - you are in the login shell of the user who locked the screen ... arrgh > > > > Is there a security advice how to prevent killing the X session by switching > > the text console and killing xinit? > > > > thanks, > > Alex > > > > you could run xdm(1)...
xdm would start X as user _x11 which in turn makes impossible for programs to use shared memory to display images.
