Connecting to a remote IPython instance

Question

I would like to run an IPython instance on one machine and connect to it (over LAN) from a different process (to run some python commands). I understand that it is possible

Answer 1

The above answers are a bit old. The solution for the latest version of ipython is much simpler but is not documented well at one place. So I thought I would document it here.

Solution to connect from any OS to a ipython kernel running on Windows

If either the client or server is a linux or other operating system, just change the location of kernel-1234.json appropriately based on Where is kernel-1234.json located in Jupyter under Windows?

1. On your windows based kernel start, make sure ipykernel is installed using pip install ipykernel
2. Start the ipykernel using ipython kernel -f kernel-1234.json
3. Locate the kernel-1234.json file on your Windows machine. The file will probably have a different number, not 1234 and will most likely be located in 'C:\Users\me\AppData\Roaming\jupyter\runtime\kernel-1234.json': https://stackoverflow.com/a/48332006/4752883
4. Install Jupyter Console (or Jupyter Qtconsole/notebook) using pip install jupyter-console or pip install qtconsole https://jupyter-console.readthedocs.io/en/latest/
5. If you are on Windows do a ipconfig to find out the ip address of your Windows server. (On Linux do a ifconfig at the shell prompt). In the kernel-1234.json file change the ip address from 127.0.0.1 to the ip address of your server. If you are connecting from another Windows server, then copy the kernel-1234.json file to your local computer and note down the path.
6. Navigate to the folder containing the kernel-1234.json and start Jupyter Console using jupyter console --existing kernel-1234.json