Draft tunneling section

directly access its address._

### Start Jupyterlab on a remote machine

After installing Jupyter and your Python environments on a remote machine, follow the instructions under [Start Jupyterlab above][#start-jupyterlab]

### The essential steps

To let your browser see the network like it looks from a remote machine

(called `host.example.com` here), run the following:

```bash

ssh -f -D localhost:54321 user@host.example.com sleep 15

chromium-browser --proxy-server="socks5://localhost:54321"

```

This will open an SSH session that provides a local network socket tunneling

all traffic through `host.example.com` and then tell chromium to use this

socket as aproxy server.  (The next step provides a script that bundles this and

handles a few caveats like isolating the tunneled browser session from your

other activities on the internet.)

### Wrapped in a script

Download the script (only needed once):

```bash

curl https://git.geomar.de/python/jupyter_on_HPC_setup_guide/raw/master/scripts/run_chromium_through_ssh_tunnel.sh -O

chmod a+x run_chromium_through_ssh_tunnel.sh

```

And run it to connect to `host.example.com`:

```bash

./run_chromium_through_ssh_tunnel.sh user@host.example.com

```

## Appendix: Jargon

- `conda` is the package manager of the [Anaconda Python