On Thu, 2004-06-03 at 19:11, Mark McLoughlin wrote: > Hey, > Caolán and I have been working on prototyping a VNC based terminal > services system which also allows hot-desking. > > The idea is that we allow GDM to accept VNC connections, spawn a VNC > server for each new connection and display a login screen. The user then > authenticates through the login screen as normal and GDM starts a new > session on the VNC server. However, if you then close your VNC client, > the session doesn't go away. GDM continues to manage that session. > > You may then go to a different terminal, the server will spawn off a > new VNC server with a login screen through which you log in. However, > once you log in, GDM detects that you already have a session running and > switches you to your original session rather than starting a new > session. > > You could imagine terminals which are very similar to LTSP terminals, > but instead of starting an X server which queries the server for a login > using XDMCP, it starts a fullscreen vncviewer which connects to the > server. > > We've reached a stage where we can demo the basic idea, so here's the > results: > 1) On a test machine which will act as the terminal server, install > the "gdm" and "vnc-server" packages from: > > http://people.redhat.com/markmc/terminal-services-demo > > Note: there are packages built against both FC2 and rawhide. > > 2) Punch port 5900 through the firewall on the server - i.e. > system-config-securitylevel, Other ports, "5900:tcp" > > 3) Reboot for good luck. > > 4) From another machine, vncviewer -FullScreen -FullColor myserver > > 5) Log in as normal, play around, start a few apps. > > 6) Close vncviewer (F8, Exit viewer) > > 7) Start vncviewer as in (4) > > 8) Log in as normal, you should be immediately switched back to your > original session. Doesn't work properly. The first time I logon it works nicely. However, I can't get back to my session once I disconnect. When trying to log in back, GDM simply hangs indefinitely. No CPU cycles are wasted. Nothing seems to happen. I'm using Kerberos V authentication, IPv6 and IPSec. Please, feel free to contact me for additional information. Thanks!
