This works if you've enabled root logins via ssh. If you're forced to
disable remote root logins, like I am, it takes a bit more bouncing
around. You may or may not require the -Y, though the programs I'm using
do not and the security team frowns upon using it. Effectively, the
difference (on systems where ForwardX11Trusted no) is straight -X only
forwards the window, whereas -Y gives you access to all of the X
extensions. Some apps don't work or are wonky without trusted x11
forwarding. As you can see, it's a deep rabbit hole, and dependent on the
environment you're operating in. Praise unix for giving us options!
On Thu, Apr 19, 2018 at 5:06 AM, <
kitepilot@kitepilot.com> wrote:
> I just do:
> ssh -fCXY root@turboviking /usr/bin/gnome-calculator
> And get my banana... :)
> ET
>
>
> Mark Phillips writes:
>
>> There is an application I need to run as root on my Linode server, but it
>> has to run in a gui.
>> I have ssh and X11 forwarding set up between my Ubuntu 14.04 system and my
>> Linode (swordfish). It works just great for a non-root user (xcalc,
>> xconsole, the application I need to run, etc). However, when I try to run
>> the application on the server as root, I get the error message "X11
>> connection rejected because of wrong authentication." For xcalc running as
>> root, I get
>> X11 connection rejected because of wrong authentication.
>> Error: Can't open display: swordfish:10.0
>> I have tried all sorts of google solutions - copying the user's
>> .Xauthority
>> to /root/ (also changing the ownership and permissions). But I just can't
>> seem to log into swordfish as a normal user using ssh -X, su to root, and
>> get the X11 forwarding to work.
>> I also went so far as to install vnc4server on the Linode, xfce window
>> manager, and vnc4viewer on my Ubuntu machine. That all works when I access
>> the vnc server as a normal user, but I can't get any X11 apps to run as
>> root (ie from a root command line in a terminal in the vnc window). The
>> error message when I try to run xcalc or other X11 apps is "No protocol
>> specified. Can't open display :1".
>> What are the special Linux guru magical incantations/spells to make X11
>> forwarding work for root?
>> Thanks!
>> Mark
>>
> ---------------------------------------------------
> PLUG-discuss mailing list - PLUG-discuss@lists.phxlinux.org
> To subscribe, unsubscribe, or to change your mail settings:
> http://lists.phxlinux.org/mailman/listinfo/plug-discuss
>
--
James McPhee
jmcphe@gmail.com
---------------------------------------------------
PLUG-discuss mailing list -
PLUG-discuss@lists.phxlinux.org
To subscribe, unsubscribe, or to change your mail settings:
http://lists.phxlinux.org/mailman/listinfo/plug-discuss
(text/plain)