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Old 04-30-2013, 10:42 AM   #1
katman2
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Connect to my linux computers with vpn. Appearing on the main desktop.


I have 2 Linux computers that are connected to 2 different projectors and need to be able to logon to these and have my mouse movements etc... Show up so my students can see what I am doing. When I vpn to them now I get a connection and can work but no one can see what I am doing.

Thanks
 
Old 04-30-2013, 10:45 AM   #2
cortman
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Have you looked into something like TeamViewer?
 
Old 04-30-2013, 10:52 AM   #3
katman2
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These to computers are not attached to the internet(and can not be attached to the internet)

Thanks
 
Old 04-30-2013, 10:57 AM   #4
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VNC is probably the answer. You would run a VNC server on each of the machines (for example vino) and use a VNC client like Remmina or Vinagre to connect to them. The only complication here being the security and VPN side of things though if they're not connected to the internet a VPN may not be necessary anyhow.
 
Old 04-30-2013, 11:58 AM   #5
katman2
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I connect to them not with VPN. But I get a desktop other than the one showing up on the projects
 
Old 04-30-2013, 12:06 PM   #6
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Then if you install a VNC server on each of them you will be able to connect to that and see the desktop of the machine. In order to do that though you will likely have to have them logged in as a user so that the desktop is showing and VNC is running.
 
Old 04-30-2013, 12:21 PM   #7
cortman
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Teamviewer also works on a LAN, but VNC is commonly used as well.
 
Old 04-30-2013, 12:52 PM   #8
katman2
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I would like to use VNC

is there away to use VNC?
 
Old 04-30-2013, 12:57 PM   #9
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Yes, but you'll need to connect the machines to the internet to install it from the repositories, or find which packages are needed and download them on another machine. If you google your distro and VNC it ought to give you tutorials but if you have specific questions of course people here will help.
The way I use VNC is to long into the machine I want to control, then run the VNC server, then on the machine used to control it I fire up Remmina or Vinagre and point them at the other machine. You can make VNC start up on login to your desktop environment but that's not something I have set up recently.
Edit: An example of instructions for Red Hat, http://www.redhat.com/magazine/006apr05/features/vnc/

Last edited by 273; 04-30-2013 at 12:59 PM.
 
Old 04-30-2013, 03:16 PM   #10
katman2
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I can vnc to them now but it does not show me on there screens(projectors). When you use Remmina or Vinagre does it not lock the screen so you can't see whats goin on?
 
Old 04-30-2013, 03:27 PM   #11
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I'm sorry I don't understand what you are asking. When you connect to them you should connect to the desktop that's running on them. If they have two screens, a monitor and the projector for example, then you may need to run the VNC server from the projector desktop rather than the monitor.
I suppose what I'm really asking is how exactly are these machines set up and what exactly are you seeing?
 
Old 04-30-2013, 03:51 PM   #12
katman2
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ok I have two linux machines one running Puppy Linux and the other Ubuntu. I can connect to them with VNC but the desktop I see is not the visible desktop of the machines. If I set them on my desk and connect each to a monitor and then vnc to them I connect and can work but the desktop I get is not the desktop the screen is showing. This is harder to explain than you would you would think. Thanks for the help and staying with me.
 
Old 04-30-2013, 03:59 PM   #13
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I think I know what you mean. it sounds like you are getting separate X sessions through VNC rather than controlling the ones you have. Sorry, it seems the page I pointed at you does this.
I'm afraid I'm not sure of the details but what you need to do is log onto the machines you want to control using keyboard and mouse attached to them so that you're controlling the desktop shown on the projector. Then you run a VNC server and connect to that. I'm sorry I'm not giving specifics but my own set-up gives me similar problems controlling the correct display.
 
  


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