“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: 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). 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. 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. This information can be saved in VNC Viewer if you prefer, or can be retrieved with the vncserver -list command when you log in via SSH.VNC ( Virtual Network Computing) allows graphical programs to be run remotely with the ability to reconnect to that session should the network connection fail. You just need to remember to connect to the same session number that corresponds to your existing desktop when you log back in. They will continue to run within your VNC session if you close out of the SSH session with the server or close your VNC Viewer program. You may leave programs running, browser tabs open, etc within your VNC session. Once that is done, your graphical desktop session will be available for you to use. Click Continue and check the box for 'Don't warn me about this again'. You may be presented with a prompt about encryption. VNC Viewer will ask you for your VNC password. In this case, we created session number 1, and we are connecting to Prairie Thunder (PT). In the top bar, enter the server you'd like to connect to with the session number typed directly after it. It can also be retrieved by entering vncserver -list. Select no when asked to enter a view-only password. It can be the same one as your Linux account password if you prefer, but it doesn't have to be. You will be asked to provide a password for your VNC session. If this is the first time you've created a VNC session, enter the command vncserver to generate a VNC session. vncpasswd - This command will allow you to reset the password for your VNC sessions. vncserver -kill :1 - This command will kill VNC session 1 assigned to your username (change this as applicable to your session). vncserver -geometry 1600x1200 vncserver -list - This command, with the -list switch, provides a list of currently running VNC sessions for your user account. Using the -geometry option allows you to set the resolution of the VNC window. Vncserver - this command creates a new VNC session on the server.
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