ssh -X (-Y) not working

[Karl Pearson]

On Tue, 23 Sep 2008, Bob McClure Jr wrote:

> On Tue, Sep 23, 2008 at 01:06:37PM -0600, Karl Pearson wrote:
>> I like remote managing my server using ssh -X or ssh -Y and then running
>> gui apps sometimes.
>>
>> I've check workstation and server X11Forwarding yes and then restarted
>> sshd so don't know where else to go.
>>
>> I've checked the logs and there's nothing about it. The error I get is:
>>
>> [root at mail root]# system-config-printer
>> system-config-printer: could not open display
>> This is a graphical application and requires DISPLAY to be set.
>>
>> or:
>>
>> [karlp at mail ~/]$ xterm
>> xterm Xt error: Can't open display:
>> xterm: DISPLAY is not set
>>
>> Of course, the obvious is to set $DISPLAY, which doesn't work either.
>
> Well, no, it needs to be set by sshd.  If you "ssh -X host.onthe.net",
> when you get a shell prompt, you should be able to
>
> $ echo $DISPLAY
> localhost:10.0

Nope, it's empty...

>
> in the usual case.  Any problems should be evident in
> /var/log/messages or /var/log/secure.

Logging in works, and the logs show that, but there's nothing about 
forwarding anomalies. There is an entry about DNS lookup failed for my IP. 
Should I set secure forwarding on?

>
> Check also your ~/.Xauthority file on the distant server.  Permissions
> should be something like mine:
>
> -rw------- 1 bob users 532 Sep 23 15:09 .Xauthority
>
> You might try deleting it, then exit, and "ssh -X" in again.  It
> should mention something about creating it.

Deleted. And... not recreated on next ssh in... Hmmm?


>
>> I've seen blogs, threads and other stuff all over the net and everything
>> says, enable X11Forwarding. I've done this for years and have never had
>> that not work. Using -X or -Y should even countermand that setting if it's
>> off, right?
>>
>> Any ideas where to go next?
>>
>> ---
>>      _/  _/      _/      _/_/_/       ____________   __o
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>>   _/ _/       _/      _/           ......................
>>  _/   _/ arl _/_/_/  _/ earson    KarlP at ourldsfamily.com
>> ---
>> http://consulting.ourldsfamily.com
>> ---
>
> Cheers,
> --
> Bob McClure, Jr.             Bobcat Open Systems, Inc.
> bob at bobcatos.com             http://www.bobcatos.com
> "A new command I give you: Love one another. As I have loved you, so
> you must love one another. By this all men will know that you are my
> disciples, if you love one another."  John 13:34-35 (NIV)
>
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      _/  _/      _/      _/_/_/       ____________   __o
     _/ _/       _/      _/    _/     ____________  _-\\<._
    _/_/        _/      _/_/_/                     (_)/ (_)
   _/ _/       _/      _/           ......................
  _/   _/ arl _/_/_/  _/ earson    KarlP at ourldsfamily.com
---
http://consulting.ourldsfamily.com
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