On Wednesday 13 November 2013 04:56:10 am Alessio Elmi wrote: > Interesting.. two questions: > 1) what are consequences of 'export DISPLAY'? Will people sitting on the > computer see anything popping up on the screen while generating?
Exporting the DISPLAY variable merely tells the X client where to send its display output. Of itself, it causes nothing to happen on the remote display, as it's a local command. Issuing the command to the client process that will be sending data to the exported display target WILL cause that client to pop up the window on the remote host. The X server to whom the display is being exported needs to have it's security opened, locally. Normally, X by default will only allow a local client to display or execute anything on the local server. Therefore, and on the remote display to which you intend to export, the user logged into that X must issue an xhost + command to allow, either explicitly or globally, something other than the local host be allowed to use that server's display. xhost + allows everyone, anywhere, globally. xhost +hostname allows only the specified host be added to the allowed list. ( can be several ) Conversely, xhost - removes hosts from the allowed list. I've never tried a global xhost - on any display, as it might deny access to the local machine. I don't know. Note that the "remote" display can be another user using another display on the same or another terminal on the same machine. Every Linux I'm aware of will allow at least 5 simultaneous displays on 5 separate terminals, real or virtual. -- Cowboy http://cowboy.cwf1.com I am not now, nor have I ever been, a member of the demigodic party. -- Dennis Ritchie _______________________________________________ Rivendell-dev mailing list Rivendell-dev@lists.rivendellaudio.org http://caspian.paravelsystems.com/mailman/listinfo/rivendell-dev
