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This section is published under the “you break it, you get to keep both pieces” license. We provide this information for those adventurous and/or foolhardy enough to venture out on their own. The easy way to avoid this problem is to not do that.Īppendix 1: Connecting Using a Different ClientĮCE Computing does not offer support for this. Note: things will be more complicated if you have started VNC server sessions on multiple hosts. Then, return to the top of the page to start a new server.

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This will wipe out any saved password for the VNC session: $ cd $ pwd / homes / nemoĪnd to be really sure nothing is running… $ pkill - u $USER Xvnc If You Need to Reset Your VNC Session PasswordĬlose any VNC sessions as in the previous section, then delete the vnc password file. X DISPLAY # PROCESS ID : 2 11720 $ vncserver - kill : 2 Killing Xvnc process ID 11720 $ vncserver - list TigerVNC server sessions : Then, run vncserver -kill to quit any sessions which need not remain open (note that you do not add 5900 in this case – use the exact display number reported). IMPORTANT: Close Your VNC Session When Finished!įrom the command line on the remote machine, use the vncserver -list command to determine the display number of your VNC session. If you see a blank window, be patient for a bit – but if it continues to be blank, end the current session and try starting over again using a different Linux Lab machine – the one you chose may already be bogged down with too many other users. There may be somewhat of a delay, but after all this you should soon see a new VNC window containing a Linux desktop session. The next prompt will ask for the VNC password you chose when you set up the VNC session. First, you will need to provide your UW NetID password. Once you’ve filled in all the fields, hit the “Connect” buttonĪfter pressing the Connect button, you will be asked for two passwords.“SSH User” is your NetID – if you leave this blank, you will be asked for it right after the next step.“SSH Server” must be the name of the server you started the VNC server on (.edu in this example).You must check the box “Use SSH tunneling”.For “Port”, use the port number from steps 3 and 4 of the previous section (e.g.For “Remote Host”, use either “localhost” or “127.0.0.1”.Launch TightVNC’s Java Viewer, then do the following:

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The ECE Linux Lab machines require you forward your VNC session over SSH, which is why we only support use of the TightVNC Java Viewer – that software can manage SSH forwarding automatically. With your VNC session now running, you can now connect to that hostname and port number using TightVNC. If it tells you the display is “:3”, you’d need to use port 5903 and so on. VNC ports start at 5900 – so when TigerVNC refers to “Display :2”, the port number VNC maps to that display is 5900 + 2 = 5902. Take note of the display number associated with the session.To verify whether a VNC session is already running, use the “-list” argument: $ vncserver - list TigerVNC server sessions : edu : 2 Starting applications specified in / homes / nemo /. 0.1 New '.edu:2 (nemo)' desktop is linux - lab - 069.ece. You can start a VNC session by using the vncserver command as follows:.(Technically you don’t need to set up a new VNC password if you’ve previously created one, but doing this each time ensures you remember what it is!)Note that while you’re typing your password on Linux, you will not see any feedback at all (no asterisks). Note that VNC passwords must be 8 characters or less – if you type a longer password, everything after character eight is ignored. Set a VNC password by running vncpasswd at the command prompt.Open your terminal program and connect to one of the Linux Lab systems using SSH.If you’re not sure of the name of the machine to which you’ve connected, use the hostname command:.In the examples below, .edu is being used (and the example user’s NetID is nemo).

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The Mac has one built-in – it’s located at Applications -> Utilities -> Terminal.

Terminal emulator – you will need a terminal to run SSH.

Unless you are physically on campus and using a wired ethernet connection, you will not be able to connect remotely to our Linux machines without Husky OnNet.

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Be sure you download the Java Viewer from that page, not the Windows version or anything else. The VNC software unfortunately does not appear to be compatible with other Java engines. The following software is required – it works on both Windows and macOS: VNC sessions will not start if your account is over the disk quota. The ECE Linux Lab systems have VNC software installed. VNC ( Virtual Network Computing) allows graphical programs to be run remotely with the ability to reconnect to that session should the network connection fail.