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Date: Fri, 21 Mar 2014 20:46:28 -0400 (EDT)
From: Randy Schultz <schulra@earlham.edu>
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To: 'Devin Teske' <dteske@FreeBSD.org>
Subject: RE: jails and X forwarding
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On Fri, 21 Mar 2014, dteske@FreeBSD.org wrote:

-}
-}> I am trying to allow a jail to do X forwarding ala ssh -Y, but seem to be
-}missing
-}> something.  I have narrowed it down to something with the jail, having
-}> successfully done this with non-jails.  IOW, sshd_config has
-}"X11Forwarding
-}> yes" etc.  The system is fbsd 9.2-STABLE.  The jail is set up using
-}ezjail.  I have
-}> tweaked various jail sysctl settings in case there was something there I
-}was
-}> missing.  I disabled the firewall rules to removed potential interference
-}from
-}> that angle.  All to no avail.  I keep getting ye olde
-}> 
-}>     xclock
-}>     X11 connection rejected because of wrong authentication.
-}>     Error: Can't open display: localhost:10.0
-}> 
-}> What am I missing?
-}> 
-}[Devin Teske] 
-}
-}Try installing xauth.

Ah, I had already done that:

Dude ? pkg_info|egrep xauth
xauth-1.0.8         X authority file utility


--
 Randy    (schulra@earlham.edu)      765.983.1283         <*>

Hatred does not cease by hatred, but only by love; this is the eternal rule.
     - Siddhartha Gautama