[Paraview] pvserver through ssh tunnel

[David E DeMarle]

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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