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Date: Sat, 1 Apr 2017 11:15:33 +0200
From: Christoph Brinkhaus <c.brinkhaus@t-online.de>
To: freebsd-questions@freebsd.org
Cc: byrnejb@harte-lyne.ca
Subject: Re: X11 and ezjails
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On Fri, Mar 31, 2017 at 01:39:29PM -0400, James B. Byrne via freebsd-questions wrote:

Dear James,

> FreeBSD-11.0
> 
> I would like to run gvim in an X11 window over ssh to a jailed
> instance created with ezjail.  I have set sshd_config in the jail to
> allow X11Forwarding and I am connecting with 'ssh -Y jail.domain.tld'
> 
> However, when I log into the jail and run gvim then I see this:
> 
> # gvim
> X11 connection rejected because of wrong authentication.
> E233: cannot open display
> Press ENTER or type command to continue
> 
> E852: The child process failed to start the GUI
> X11 connection rejected because of wrong authentication.
> 
> 
> I have run into this before and have attempted to apply all of the
> previous remedies but nothing seems to work.  Is there anything about
> jails themselves that would prevent X11 forwarding?
> 
> Has anyone accomplished what I am trying to do?  If so then how was it
> done?

Please have a look at
https://forums.freebsd.org/threads/53362/
It works with ezjail as well.

Kind regards,
Christoph