[LUGSB] Remote desktop from SINC site?

[Cody Baker]

You should make sure that your home machine allows X forwarding.  A lot 
of distros disable this in the openssh config ( generally 
/etc/ssh/sshd_config ).

Thank You,

Cody Baker
cody at codybaker.org
330.934.0659

William Joseph Lahti wrote:
> I have used X tunneling from SINC site desktops. However, I've never 
> tried to connect to a machine that's off-campus (outside sunysb.edu) 
> from a SINC site system.
>
> Go to start->programs->Network tools->X-Win32 8.1->X-Win32. You can 
> configure your connection from there. Just make sure the other end is 
> properly configured.
>
> I should mention the the iMacs that run Linux in the Math SINC site 
> are NOT SINC site computers. That half of the room is the "Mathlab", 
> and is controlled by the Math department. You need a seperate account 
> to access these machines.
>
> ---
> William Lahti
> Vice-President, Computer Science Graduate Student Council
>
> On Thu, 13 Sep 2007, Michael F. Lamb wrote:
>
>> Michael wrote:
>>> As the subject explains, I'd like to be able to control my desktop, 
>>> on the computer in dorm room, from a SINC site computer. I've been 
>>> able to SSH in to my box
>>> and that's all worked fine, but I haven't been able to use X-session
>>> forwarding. For example, when I attempt to start my (graphical, not 
>>> lynx)
>>> web browser, I get a message along the lines of "display not found". 
>>> Does
>>> this indicate that I have not setup SSH or X correctly, or is there a
>>> (artificial) limitation of the SINC site computers/network? If it's the
>>> later, is there a solution anyone could suggest to me that they've 
>>> gotten
>>> working, such as VNC or RDP?
>>
>> You're probably aware that you need an "X server" on the machine 
>> you're connecting from, in order for the client (web browser) 
>> tunneling through your ssh connection to have somewhere to display 
>> itself. I don't know of any Windows boxes in the SINC sites that have 
>> this, so you must be using a Mac (which come with an X server 
>> program?) or one of the Unix machines in the Math/Physics SINC site?
>>
>> Assuming you've got that part set up properly, have you remembered to 
>> set 'X11Forwarding yes' in /etc/ssh/sshd_config on the box in the 
>> dorm, and enable X forwarding in your client? With linux ssh, if it's 
>> not set up to forward X by default (configurable in ~/.ssh/config) 
>> you have to launch it with the '-X' command line option.
>>
>> I haven't ever tried to run an X11 app remotely from the macs or the 
>> Math SINC site boxes, but I think I have from a computer lab in the 
>> CS building.
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