Shift running X window (display environment) on SSH X11 forwarding
forwarding, remote-access, ssh, x11
Solution
I've never used it myself, but Xpra appears to be the commonly suggested solution; you might also consider xmove. Both of these work by proxying the X client's connection to its server, and keeping track of enough state so that you can switch the proxy's server-side connection among servers and get a sensible result. Without such a proxy, as in "stock" X, it is not possible to disconnect a client from one server and connect it to another, except in the case of a client which is designed specifically to support such behavior.
Problem
I want to see remotely some running GUI application without kill the current process, I have tried vnc and xrdp, xrdp opens a new blank session, so it is not for me, vnc is good, but not exactly what I need, it uses the screen and devices presents, someone could mess with me moving the mouse or typing on the keyboard. Therefore I figured out the only way I could do what I need is managing to shift a running X window from one display to another, thus even on a SSH -X (X11 forwarding) I would be able to see it. I am on this quest for a long time and I didn't found out a conclusive solution, that is the reason I am appealing to you. Could you help me to solve this trouble? Thanks,