<div dir="ltr">Hi Nio,<div> </div><div>The problem with going to the "real server guys" is that terminal servers are sort of halfway between the server/desktop divide, so some things fall on the desktop side, and some on the server side. This specific issue is how to get lxsession-logout to not show the shutdown/reboot buttons, which I would deem to belong on the desktop side of things. I may need to try the LXDE guys directly if nobody is able to help here. I just thought I would try the distro specific mailing list before going to the program specific one :)</div> </div><div class="gmail_extra"> <div class="gmail_quote">2014-07-10 18:13 GMT+02:00 Nio Wiklund <<a href="mailto:nio.wiklund@gmail.com" target="_blank">nio.wiklund@gmail.com</a>>: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> Hi Anders, You can also ask in the Server Platforms Forum at <a href="http://ubuntuforums.org/forumdisplay.php?f=339" target="_blank">http://ubuntuforums.org/forumdisplay.php?f=339</a> where some real server guys will probably help you. Best regards/Nio 2014-07-10 16:07, Anders Bruun Olsen skrev: > Hi, > <div><div class="h5">> Ehm.. a graphical desktop environment is sort of the point of a terminal > server. It provides remote desktops to users. It isn't for running a > graphical desktop on a locally attached screen :) > The issue here is two-fold: > > 1. If the graphical login-manager (lightdm) is running, all users who > login to a desktop remotely can shut down the entire machine. This is > not a good thing, but can be circumvented by killing off lightdm. This > is fine when you use something like Nomachine, which takes care of > spinning up a desktop session. But with LTSP you would probably run into > problems, since it depends on having a DM handling login and spinning up > desktop sessions. Although lightdm may be intelligent enough to actually > know when users are remote on LTSP, and will refuse to allow them to > shutdown the machine without proper rights. This may be a none-issue for > LTSP. I don't use LTSP, so I can't say for sure. With Nomachine it is an > issue. > > 2. Users can get confused when sitting in front of a thin client running > the nomachine client. They want to shut down for the day and choose the > shutdown menu on their Lubuntu desktop. Here the correct process is to > choose logout and then shut down the thin client when logout has > happened. But users don't usually think about the fact that this > connects to a remote desktop, so pressing the shutdown button in the > shutdown menu seems logical. They want to shut down their local machine. > Unfortunately that button is meant to shut down the terminal server. > When that does not work (they get the "access denied" message), most > users get confused and go ask it-support for help. I just want to > prevent this confusion, if possible :) > > > > 2014-07-10 14:53 GMT+02:00 Nio Wiklund <<a href="mailto:nio.wiklund@gmail.com">nio.wiklund@gmail.com</a> </div></div>> <mailto:<a href="mailto:nio.wiklund@gmail.com">nio.wiklund@gmail.com</a>>>: <div><div class="h5">> > 2014-07-10 14:21, Anders Bruun Olsen skrev: > > Hi, > > > > I am looking to build a new terminal server for remote desktops which > > will be accessed through NoMachine Enterprise. Lubuntu and LXDE looks > > like a nice fit, but I have run into a couple of issues. > > > > I have a default install of Lubuntu 14.04 64-bit. I have created a > > non-privileged user (no sudo rights). I have also installed NoMachine > > Enterprise Server. First thing I discovered was what I would > almost call > > a security issue. When my non-privileged user is logged in remotely > > (with Nomachine Enterprise Client), choosing shutdown in the logout > > dialog actually does shut down the server. How can this user shut down > > the server, without root access? I found out, that if I ensure lightdm > > isn't running (nobody will login locally), my unprivileged user can't > > shut down the server, but will be asked for the password to a > privileged > > user, so I guess this is an issue with lightdm. Is this really > intended > > behavior? > > I think it is made for desktop installation, where any user should be > able to shut down the computer. But it is not suitable for a server. I'm > glad you found a way to stop shutting it down with superuser privileges. > > But, many people will discourage the use of a graphical desktop > environment for a server. Do you really need it? Or maybe a simple > window manager like Openbox or Fluxbox would do? > > > > > Next up, I would like to hide the shutdown and reboot buttons in the > > logout dialog. The only way I have been able to find by searching, > is to > > actually change the source code for lxsession-logout and recompile. Is > > there really no other way to hide those buttons? > > Sorry, I don't know this, but think other people can help you with it. > > > -- > > Anders Bruun Olsen > > It-ansvarlig > > Det Danske Sprog- og Litteraturselskab > > (Society for Danish Language and Literature) > > > > > > > -- > Lubuntu-users mailing list </div></div>> <a href="mailto:Lubuntu-users@lists.ubuntu.com">Lubuntu-users@lists.ubuntu.com</a> <mailto:<a href="mailto:Lubuntu-users@lists.ubuntu.com">Lubuntu-users@lists.ubuntu.com</a>> <div class="HOEnZb"><div class="h5">> Modify settings or unsubscribe at: > <a href="https://lists.ubuntu.com/mailman/listinfo/lubuntu-users" target="_blank">https://lists.ubuntu.com/mailman/listinfo/lubuntu-users</a> > > > > > -- > Anders Bruun Olsen > It-ansvarlig > Det Danske Sprog- og Litteraturselskab > (Society for Danish Language and Literature) </div></div></blockquote></div> <div> </div>-- Anders Bruun Olsen It-ansvarlig Det Danske Sprog- og Litteraturselskab (Society for Danish Language and Literature) </div>