[Paraview] pvserver through ssh tunnel

[Kit Chambers]

Thanks David, That works great.

If I can abuse this list just a little further for advice. Do you have any
suggestions on compression levels both within paraview and for the ssh
tunnel? To put this in context the server is being managed over the
internet (so relatively slow connection). The files being loaded for a
given state are maximum of 150MB.

Even just recommendations of settings to try would be helpful.

Kit




On Tue, Mar 5, 2013 at 1:27 PM, David E DeMarle <dave.demarle at kitware.com>wrote:

> Yes you are on the right track.
> Remove N from -nNTR since that tells ssh _not_ to run the command. Then
> what you have will likely work .
> Also consider putting that the command that launches pvserver in a script.
> In the script you can do arbitrary setup, such as launching pvserver
> through pbs etc.
>
>
> David E DeMarle
> Kitware, Inc.
> R&D Engineer
> 21 Corporate Drive
> Clifton Park, NY 12065-8662
> Phone: 518-881-4909
>
>
> On Tue, Mar 5, 2013 at 7:40 AM, Kit Chambers <kit.chambers.kc at gmail.com>wrote:
>
>> Thanks David that works a treat.
>>
>> Is it possible to combine the tunnel set up and server start up in the
>> server configuration?
>>
>> I tried:
>> ssh -nNTR 2223:localhost:11111 me at pvserver-host ".bin/pvserver
>> --server-port=2223 -rc"
>>
>> but to no effect.
>>
>> Kit
>>
>>
>>
>> On Tue, Mar 5, 2013 at 12:04 PM, David E DeMarle <
>> dave.demarle at kitware.com> wrote:
>>
>>>
>>> You are just missing that you need to use a reverse connection to make
>>> the server attempt to connect through the tunnel back to the listening
>>> client, as opposed to the normal connection mode where the client connects
>>> to the listening server.
>>>
>>> In your setup the ssh tunnel is listening on the server side on port
>>> 2223 first, then the pvserver also tries to listen on 2223 and it can't
>>> because it is in use. Using a reverse connection the server will instead
>>> send data to the port which is fine.
>>>
>>>
>>>
>>> David E DeMarle
>>> Kitware, Inc.
>>> R&D Engineer
>>> 21 Corporate Drive
>>> Clifton Park, NY 12065-8662
>>> Phone: 518-881-4909
>>>
>>>
>>> On Tue, Mar 5, 2013 at 6:39 AM, Kit Chambers <kit.chambers.kc at gmail.com>wrote:
>>>
>>>> Hi,
>>>>
>>>> I am trying to run a pvserver which is connected to using a client
>>>> behind a firewall. The firewall blocks everything except ssh going out.
>>>> Hence I am trying to use pvserver through an ssh tunnel.
>>>>
>>>> My plan was as follows:
>>>>
>>>> On client (inside firewall):
>>>> 1 - Start paraview
>>>> 2 - Create ssh tunell for port 11111
>>>> %  ssh -nNTR 2223:localhost:11111 me at pvserver-hostname
>>>>
>>>> Then on pvserver-hostname start the pvserver, however I get the
>>>> following
>>>>
>>>> % ./bin/pvserver --server-port=2223
>>>> Waiting for client
>>>> Connection URL: cs://localhost:2223
>>>> ERROR: In
>>>> /home/rock/kit/PIG/Technical/software/pv_v1.0.0-release/ParaView-3.11.1/VTK/Common/vtkSocket.cxx,
>>>> line 206
>>>> vtkServerSocket (0x1d067ae0): Socket error in call to bind. Address
>>>> already in use.
>>>>
>>>> ERROR: In
>>>> /home/rock/kit/PIG/Technical/software/pv_v1.0.0-release/ParaView-3.11.1/ParaViewCore/ClientServerCore/vtkTCPNetworkAccessManager.cxx,
>>>> line 284
>>>> vtkTCPNetworkAccessManager (0x1cb4aea0): Failed to set up server socket.
>>>>
>>>> This procedure work fines for other services. For example:
>>>> % ssh -nNTR 2223:localhost:22 me at pvserver-hostname
>>>>
>>>> Allows me to ssh back to my machine from pvserver-hostname (using port
>>>> 2223).
>>>>
>>>> What's so special about pvserver? Am I missing something really basic?
>>>>
>>>> Any help or suggestions would be greatly appreciated.
>>>>
>>>> Kit
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
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>>
>
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