[LUGSB] Remote desktop from SINC site?

[Aaron Pellman-Isaacs]

I'll throw in here that if the sinc site machines won't let you ssh out 
to standard (22) or nonstandard ($RANDOM_PORT), you may have to run ssh 
on port 80 (http, which they *have to* allow) or somesuch to get around 
it (on the home machine). The other option would be to tunnel the 
connections *through* sparky, which is both accessible from the lab and 
has full outside access for such things.
--Aaron

Cody Baker wrote:
> 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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