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I'm trying to configure and enable remote login on an Ubuntu 15.10 machine by connecting to it using ssh from Ubuntu 14 machine.

On Ubuntu 15.10 machine, I've installed vino using the following command:

sudo apt-get install vino

However when I try to run:

vino-preferences

I get the following error:

$ sudo vino-preferences
Failed to connect to Mir: Failed to connect to server socket:
  No suchfile or directory
Unable to init server: Could not connect: Connection refused
(vino-preferences:8267): Gtk-WARNING **: cannot open display:

How can I solve this?

Please, whoever wants to suggest something, please use simple words and detailed steps; as I am so shallow in all Linux things.

Note: that ubuntu-desktop is not installed yet on the destination server (the Ubuntu 15)... I don't know if this matters!

Whaaaaat
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  • Are you running `vino-preferences` through SSH? –  Apr 17 '16 at 06:46
  • If so, then this is normal. If you want to run graphical applications through SSH, you have to enable X11 forwarding in SSH (use SSH with the `-X` flag). –  Apr 17 '16 at 06:48
  • Thank Raju... I've tried ssh -X [ip address] ... then tried the vino-preferences command ... but same error – Whaaaaat Apr 17 '16 at 07:15
  • Do you have X-Forwarding enabled in `/etc/ssh/sshd_config`? The line should look like `X11Forwarding yes` –  Apr 17 '16 at 08:37
  • if you are asking about the server side (the Ubuntu 15), then yes it is enabled and I've restarted ssh using: sudo service ssh restart ... and even I restarted the whole server .... but nothing changed ... same error – Whaaaaat Apr 17 '16 at 11:03
  • Does the server have a GUI installed? –  Apr 17 '16 at 11:08
  • No not yet ... should I install it? – Whaaaaat Apr 17 '16 at 16:13
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    If you want to run graphical apps - yes. But remember that it will just slow down your server and you are better off using `dconf` commands to control vino through the CLI. Also, vino *itself* needs a GUI to exist - else, what would the VNC broadcast? –  Apr 17 '16 at 16:56

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