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Is it possible to somehow open an x application on another users display?
Say that i have user A who is logged on to the ubuntu desktop, and user B who is accessing the ubuntu machine via SSH.
I know that it is possible for user B to open an x application locally, but is it possible for user B to open a program (ie firefox) and have it displayed on user A's desktop session?
And if yes, how?
Martin Nielsen
Posted 2013-06-04T13:42:00.117
Reputation: 347
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Yes, but it will depend on your xhost settings. So, if you have connected as userB to a machine that is running an X session owned by userA, you will need to do two things:
userA must allow you access:
userA@foo $ xhost +
You need to set your DISPLAY variable to the remote display:
userB@foo $ export DISPLAY=:0;
Now userB will be able to run graphical programs.
terdon
Posted 2013-06-04T13:42:00.117
Reputation: 45 216
my man entry reports that xhost + permits ANY user to use the host X session. The stdout, says: "...clients can connect from any host." Is there a method to specify ONE user only or a add a user to the Set of users? – will – 2016-06-03T13:47:00.343
And that will make user B's xapp appear on user A's screen? Also, is DISPLAY=:0; the actual value, or do i have to do some reading to find out what to set it for? I would assume i would need to some IP address and user stuff there? – Martin Nielsen – 2013-06-04T14:45:24.623
@MartinNielsen yup. That's what you asked for isn't it? – terdon – 2013-06-04T14:46:22.850
Yes... yes it was:) – Martin Nielsen – 2013-06-04T14:47:13.443
This questions has been asked already see here. Though in a not so clear fashion. Is it possible to merge? Or must one of them be tagged as duplicater?
– wottis – 2013-06-04T21:29:57.597@wottis flag the question for moderator attention and leave them a message with the duplicate's link. They can choose to merge or not. – terdon – 2013-06-05T01:53:26.533
Related: How to open an application in running X session
– slhck – 2013-06-05T15:27:05.130