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{{From|https://help.ubuntu.com/community/Xpra}} {{Languages|UbuntuHelp:Xpra}} <<Include(Tag/NeedsExpansion)>> == Description == Xpra is a tool which allows you to run X programs — usually on a remote host — and then direct their display to your local machine, disconnect from these programs, and reconnect from the same or another machine, all without losing any state. It differs from standard X forwarding in that it allows disconnection and reconnection without disrupting the forwarded application; it differs from VNC and similar remote display technologies in that xpra is rootless: i.e., applications forwarded by xpra appear on your desktop as normal windows managed by your window manager, rather than being all "trapped in a box together". Xpra also uses a custom protocol that is self-tuning and relatively latency- insensitive, and thus is usable over network connections that are too slow or unreliable for standard X forwarding. == Installation == To install the '''xpra''' package, simply use your favorite package manager. Note that this package only exists in Ubuntu 9.10 or later. <code><nowiki>sudo apt-get install xpra</nowiki></code> == Usage Examples == <code><nowiki>xpra start :7</nowiki></code> Start an xpra server using display number :7. <code><nowiki>DISPLAY=:7 firefox</nowiki></code> Start firefox running inside the xpra server. No window will appear. <code><nowiki>xpra list</nowiki></code> Show a list of xpra servers you have running on the current host. <code><nowiki>xpra attach :7</nowiki></code> Attach to the xpra server that is using local display number :7. Any apps running on that server will appear on your screen. <code><nowiki>xpra attach ssh:frodo:7</nowiki></code> Use ssh to attach to the xpra server that is running on machine frodo and using display :7. Any apps running on that server will appear on your local screen. <code><nowiki>xpra start :7 && DISPLAY=:7 screen</nowiki></code> Start an xpra server and a screen(1) session. If any of the applications inside screen attempt to use X, they will be directed to the xpra server. <code><nowiki>xpra stop :7</nowiki></code> Stop the xpra server on display number :7. == See Also == * https://help.ubuntu.com/community/Screen - GNU Screen == External Links == * http://partiwm.org/wiki/xpra - Official Website. * http://en.wikipedia.org/wiki/Xpra - Wikipedia Article. ---- [[category:CategorySoftware]] [[category:UbuntuHelp]]
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