[Paraview] pvserver through ssh tunnel

[Kit Chambers]

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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