[IPython-User] ipython notebook not displaying output cells

Darren Govoni darren@ontrenet....
Wed Aug 15 19:32:29 CDT 2012


That's unfortunate, but also not unique to windows either. 

Is it because the websockets that use the random ports? I presume there
is no kind of "proxy" or tunneling for websockets 
to deal with secure environments?

On Wed, 2012-08-15 at 17:17 -0700, MinRK wrote:

> *each* Kernel requires four ports which are randomly selected - so
> that's four ports per notebook that you need to have available.
> 
> You can certainly subclass the KernelManager such that it will change
> the random port selection to selecting from a predetermined list, but
> you will need to make *a lot* of loopback ports available.  Now, you
> can avoid this issue by using IPC transports instead of TCP, but of
> course ØMQ does not support IPC transports on Windows.
> 
> 
> So I think the answer is probably going to end up being:  The IPython
> Notebook is not compatible with this kind of environment, unless there
> are Windows wizards who can figure it out.
> 
> 
> On Wed, Aug 15, 2012 at 5:04 PM, Darren Govoni <darren@ontrenet.com>
> wrote:
> 
>         Hopefully one of the ipython gurus can help us get this to
>         work through a firewall.
>         Arbitrary port opening isn't going to work in an enterprise
>         firewall environment I think.
>         
>         
>         
>         On Wed, 2012-08-15 at 17:01 -0700, Phil Austin wrote:
>         
>         > On 12-08-15 04:47 PM, Darren Govoni [via Python] wrote: 
>         > 
>         > > I'm having this problem as well -  with a liberal (but
>         > still enabled) 
>         > > firewall. It think its AD. 
>         > > I don't have any control over the firewall or windows
>         > machine. But need 
>         > > to find a way for this to work. 
>         > > 
>         > > What ports are required to receive the output cells? I
>         > have my notebook 
>         > > server running on port 80 (firewall friendly) 
>         > > and thought that means all comms to the server piggyback
>         > on that port. 
>         > > Is that true? 
>         > > 
>         > > Are there other ports used by notebook we need to be aware
>         > of, because 
>         > > right now it doesn't work 
>         > > through a firewall. 
>         > >
>         > 
>         > Here's what I see on a windows laptop without AD -- the
>         > output is 
>         > coming back through tcp://127.0.0.1:49926 etc. -- Phil 
>         > 
>         > C:\Users\phil>ipython notebook --port 9999 
>         > [NotebookApp] Using existing profile dir: 
>         > u'C:\\Users\\phil\\.ipython\\profil 
>         > efault' 
>         > [NotebookApp] Serving notebooks from C:\Users\phil 
>         > [NotebookApp] The IPython Notebook is running at:
>         > http://127.0.0.1:9999/
>         > [NotebookApp] Use Control-C to stop this server and shut
>         > down all kernels. 
>         > [NotebookApp] Using MathJax from CDN: 
>         > http://cdn.mathjax.org/mathjax/latest/M
>         > Jax.js 
>         > [NotebookApp] Kernel started:
>         > 99113b7c-ca88-4bef-9294-912080dd91ea 
>         > [NotebookApp] Connecting to: tcp://127.0.0.1:49926 
>         > [NotebookApp] Connecting to: tcp://127.0.0.1:49928 
>         > [NotebookApp] Connecting to: tcp://127.0.0.1:49925 
>         > [IPKernelApp] To connect another client to this kernel,
>         > use: 
>         > [IPKernelApp] --existing
>         > kernel-99113b7c-ca88-4bef-9294-912080dd91ea.json 
>         > [NotebookApp] Kernel started:
>         > a7b775b6-3daf-41e0-b92a-d8d054d8ee10 
>         > [NotebookApp] Connecting to: tcp://127.0.0.1:50338 
>         > [NotebookApp] Connecting to: tcp://127.0.0.1:50339 
>         > [NotebookApp] Connecting to: tcp://127.0.0.1:50341 
>         > [IPKernelApp] To connect another client to this kernel,
>         > use: 
>         > [IPKernelApp] --existing
>         > kernel-a7b775b6-3daf-41e0-b92a-d8d054d8ee10.json 
>         > 
>         > 
>         > 
>         > 
>         > 
>         > ____________________________________________________________
>         > 
>         > View this message in context: Re: ipython notebook not
>         > displaying output cells
>         > Sent from the IPython - User mailing list archive at
>         > Nabble.com.
>         > 
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