Untrusted X11 forwarding setup failed

Koichiro Iwao meta at club.kyutech.ac.jp
Tue Jun 30 08:42:28 UTC 2009

I'm not sure about the difference, but you will easily find it on  
To avoid the warning, just try the ssh -Y option.


On 2009/06/24, at 8:33, Daniel Underwood <djuatdelta at gmail.com> wrote:

> Whenever I
> $ ssh -X user at server
> from my FreeBSD machine, I get the following message (and am
> successfully logged in):
> Warning: untrusted X11 forwarding setup failed: xauth key data not  
> generated
> Warning: No xauth data; using fake authentication data for X11  
> forwarding.
> When I log in to the same servers from my Ubuntu machines, I do NOT
> get that message.
> What's wrong here?
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