Lang: en Status: published

At some point I used Jupyter notebooks on different computers and with different Python versions and wanted to distinguish them. So I gave them IP addresses with the Python version encoded in them and the host all within the local block 127..

But how do I ssh-forward to them now?

local.host:~$ ssh remote.host -L 8000:127.1.3.6:8888 
remote.host:~$ jupyter notebook list
Currently running servers:
http://127.1.3.6:8888/ :: /home/user/path/to/notebook

does the trick. On the local.host I forward not like one is used to to localhost, but to 127.1.3.6. I get this address, if I do not already know it, by listing all Jupyter notebooks.

On my local computer I then have to go to http://localhost:8000 and not to http://127.1.3.6:8000 which one may have expected.

ssh through hops

In case your Jupyter notebook is running behind a firewall with a login gateway, you can also use this method.

local.host:~$ ssh -L 8000:localhost:8800 gateway.host ssh 8800:127.1.3.6:8888 jupyter.host -N

This chain can be extended, but you have to (re)move the terminating -N accordingly.