Hiding Shutdown/reboot in logout dialog and possible security issue

Anders Bruun Olsen abo at dsl.dk
Tue Jul 15 08:46:57 UTC 2014

Hi Chris,

I haven't specifically asked NoMachine about the issue with shutdown
without permission through lightdm, but I suspect that they would (quite
rightly, if you ask me) say that it is an issue in lightdm, not an issue in
NoMachine. I think the problem is that lightdm expects to be the one to
iniate a remote login, if a remote login happens. With NX there is a
different daemon that facilitates the login. Lightdm would then think that
anybody logged in, not through a remotely iniated session through lightdm,
is a local user, that should be allowed to shutdown/reboot. Thinking more
about it, I think I will go and file a bug against lightdm. The developers
can then either dismiss it as a non-issue, or implement a fix :)

2014-07-14 16:28 GMT+02:00 Chris L <chris_law82 at yahoo.it>:

> Anders Bruun Olsen <abo at ...> writes:
> >
> >
> > Hi John,
> > Yeah, since I need users to also be able to login from home, which LTSP
> can't handle, I am committed to NoMachine. I don't want to maintain two
> different solutions. Also, since NoMachine would still be in the mix, the
> issues would still be there.
> >
> >
> > 2014-07-10 18:16 GMT+02:00 John Hupp
> <lubuntu at prpcompany.com>:
> > On 7/10/2014 10:07 AM, Anders Bruun Olsen wrote:
> > This may be a none-issue for LTSP
> >
> >
> >
> > It is indeed a non-issue for LTSP.  But if you are already rather
> committed to NoMachine, then that is not the way to a solution for you.
> >
> Hi, don't want to butt in but my google search about NoMachine on LXDE
> brought me to this thread. Have you contacted NoMachine to see what they
> say
> about this. Perhaps they can recommend or advise appropriately?
> Chris
> --
> Lubuntu-users mailing list
> Lubuntu-users at lists.ubuntu.com
> Modify settings or unsubscribe at:
> https://lists.ubuntu.com/mailman/listinfo/lubuntu-users

Anders Bruun Olsen
Det Danske Sprog- og Litteraturselskab
(Society for Danish Language and Literature)
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.ubuntu.com/archives/lubuntu-users/attachments/20140715/cd36557c/attachment.html>

More information about the Lubuntu-users mailing list