# [IPython-User] sockjs code test

Matthias BUSSONNIER bussonniermatthias@gmail....
Thu Nov 1 09:01:45 CDT 2012

Le 1 nov. 2012 à 14:06, Massimo Di Stefano a écrit :

> Il giorno Nov 1, 2012, alle ore 5:49 AM, Matthias BUSSONNIER ha scritto:
>
>>
>> Le 1 nov. 2012 à 04:23, Massimo Di Stefano a écrit :
>>
>>> Hi All,
>>>
>>>
>>> i've exactly the same needs,
>>> the network of my institute is under a VPN & firewall
>>> and they don't allow me to run the notebook outside the VPN
>>>
>>> looking for a solution i found the sockjs branch a possible way to figure out this problem
>>> i reinstalled ipython using the sokjs branch .. but i guess i need to tune-up some settings in order to have it running.
>>> because i have exactly the same behavior of master branch.
>>>
>>> please can you try to guide me to learn how to use that branch ?
>>
>> For most cases, it shouldn't need more configuration master.
>>
>> Do you have any errors in the javascript console or or in the command line where you ran the notebook ?
>
> with VPN ON the crhome js console at the dashbord page says :

> Port error: Could not establish connection. Receiving end does not exist. miscellaneous_bindings:235
> chromeHidden.Port.dispatchOnDisconnect

This error does not come from IPython itself, I'm trying to figure out what could cause this.
Is there any tracebacks ?

The console log does not show anything unusual.

> I tried doing what is described here, adding my.host.edu to the 'no proxy for' field (Chrome, on MacbookPro) and that did NOT resolve the issue.

I added the Proxy part because it was the issue for me. I figured out because it was working when the server was on localhost and not otherwise.

> from that topic :
>
> http://old.nabble.com/IPython-Notebook-on-Webfaction-to34451263.html#a34451263
>
> it seems to be a known bug
>
> the comment that suggests to try the sockjs branch is:  https://github.com/ipython/ipython/pull/2321#issuecomment-8584862
>
> … but i'm stuck on understand how to use it in a proper way
> any help ?

This shouldn't need more configuration to work (mane clearing browser cache).
We are still trying to figure out why it does not work on some cases.

We might need a Page that describe how to test what works and what doesn't.

Can you try this to see if websoket works
http://www.websocket.org/echo.html

--
Matthias

> Thanks!
>
> Massimo.

>
>
> after i close the vpn connection (needed when i'm ssh into the server  to start the notebook) the notebook dashbord is no more available
> blank page.
>
>
> !cat nohup.out
> [NotebookApp] Using existing profile dir: u'/home/epifanio/.ipython/profile_default'
> [NotebookApp] Serving notebooks from local directory: /home/epifanio
> [NotebookApp] The IPython Notebook is running at: http://xxx.xxx.xxx.xxx:8888/
> [NotebookApp] Use Control-C to stop this server and shut down all kernels.
> [NotebookApp] Using MathJax from CDN: http://cdn.mathjax.org/mathjax/latest/MathJax.js
> [NotebookApp] Kernel started: 7665850e-ecf6-4368-b253-4807afeab0a1
> [NotebookApp] Connecting to: tcp://127.0.0.1:44548
> [NotebookApp] Connecting to: tcp://127.0.0.1:59842
> [NotebookApp] Connecting to: tcp://127.0.0.1:41603
> [IPKernelApp] To connect another client to this kernel, use:
> [IPKernelApp] --existing kernel-7665850e-ecf6-4368-b253-4807afeab0a1.json
> [NotebookApp] Connecting to: tcp://127.0.0.1:54440
> [NotebookApp] Connecting to: tcp://127.0.0.1:47424
> [NotebookApp] Connecting to: tcp://127.0.0.1:58503
> [IPKernelApp] To connect another client to this kernel, use:
> [NotebookApp] Using existing kernel: 6c678bbf-b652-4a97-adc8-654caba4963c
> [NotebookApp] Connecting to: tcp://127.0.0.1:54440
> [NotebookApp] Connecting to: tcp://127.0.0.1:47424
> [NotebookApp] Connecting to: tcp://127.0.0.1:58503
>
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