TightVNC (both client and server with some nice features).RealVNC (no need to fill in the details, just Proceed to Downloads).Linux (few examples, check you distribution repository for more).On your box (Linux, Mac or Windows) you need a VNC native client or to be able to run Java applications on the web. īefore you start, you need to have a valid CERN AFS account, to be able to connect to lxplus and start commands there. See also the video tutorial How to run to run vnc on lxplus. Here I'm describing the easiest set-up, based on standard software packages already installed or easy to install. All of them start a virtual X11 (VNC) server on the remote machine so that graphic applications can talk X11 via the local network, while the VNC client (or viewer) running on your box uses a lightweight protocol to communicate with the server and display the content of the remote virtual screen. Several tools have been developed to address the slowness of X11, the main one being VNC, with the relative TightVNC and the alternative NoMachine NX. Unfortunately the X11 protocol is very heavy, so on slow connections it can become very painful. This works because ssh automatically tunnels the X11 protocol so that the X11 applications running on the server can talk to the X11 server running on your box. If you are used to UNIX and Linux, you probably know that you can connect with ssh to a Linux/UNIX server and start a graphic application, which will then appear (if your ssh client is configured correctly) on your screen. This page describes how to start a graphical session on the lxplus cluster via a slow network connection.
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