[GRLUG] remote sessions

[Darrel Clute]

All,

Glad to be of assistance.


Sincerely,


Darrel Clute



On Mon, Jan 10, 2011 at 09:57, Eric Beversluis
<ebever at researchintegration.org> wrote:
> Darrel,
> Thanks--that sounds like what I need to know to go forward.
>
> On Mon, 2011-01-10 at 09:50 -0500, Darrel Clute wrote:
>> Eric,
>>
>> Can you SSH to the laptop before logging on locally?  How is the
>> laptop connecting to the network, wired or wireless?  NX utilizes SSH
>> and X11 forwarding and starts on call when executed properly via SSH,
>> they also have some customizations which permits greater compression
>> and greater handling of latency then the default X11 over SSH.
>> Therefore if you cannot SSH to the device you won't be able to launch
>> an NX session.
>>
>> Based on your description I would presume that the laptop is
>> connecting via wireless and you are still using the default
>> NetworkManager.  NetworkManager will start a wired connection before
>> login, but not a wireless, by default.  If you are connecting via
>> wireless, you may want to replace NetworkManager with WICD as the
>> latter will start a wireless connection before login, and personally I
>> haven't had much success with NetworkManager successfully starting a
>> wireless connection before login.
>>
>> Let me know if that helps or not.
>>
>>
>> Sincerely,
>>
>>
>> Darrel Clute
>>
>>
>>
>> On Mon, Jan 10, 2011 at 08:52, Eric Beversluis
>> <ebever at researchintegration.org> wrote:
>> > On Mon, 2011-01-10 at 08:27 -0500, Michael Mol wrote:
>> >> On Mon, Jan 10, 2011 at 8:05 AM, Eric Beversluis
>> >> <ebever at researchintegration.org> wrote:
>> >> >
>> >> > I've been accessing my Lenovo Linux laptop (my main computer) from a
>> >> > Win7 laptop using NoMachine, since the screen on the Lenova is down
>> >> > (hopefully to recover once the inverter I've ordered arrives).
>> >> >
>> >> > It seems that
>> >> > 1.  When I access remotely, NoMachine starts a new session.
>> >> > 2.  NoMachine cannot connect unless I have already logged into the
>> >> > Lenovo.
>> >> >
>> >> > So my question is: What's the explanation for the fact that I need to be
>> >> > logged into a session on the Lenovo before NoMachine can create a new
>> >> > session? (Fortunately, even without a screen, I can type my password
>> >> > into the Lenovo when Ubuntu makes its "ready" noise. But what if one
>> >> > were truly running "headless"?)
>> >> >
>> >>
>> >> I'm going to venture a guess that the NoMachine server software is
>> >> actually *launched* as a process in your desktop session, so if you
>> >> haven't already logged in, the server software hasn't been launched
>> >> yet.
>> >>
>> >> For most programs, the usual solution for something like that is to
>> >> have the daemon software launched as part of the init scripts, i.e.
>> >> from under /etc/init.d/. I don't have any personal experience with
>> >> NoMachine, though, so I don't know if it would require an X server's
>> >> credentials to launch.
>> >>
>> >> As for the headless scenario, the simplest solution would be to run an
>> >> X server which doesn't expect any real hardware, like xvfb.
>> >>
>> >> --
>> >> :wq
>> >>
>> > That makes sense. Thanks.
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