This is the way how can you connect google colab as well as google drive (mounted) using SSH. This is useful when you want to download data directly to your google drive specially for machine learning purpose. It can be easy to mount google drive and use files into for your code.

Connect Google Colab+Drive with SSH.ipynb

@Swastik2000 you shouldn't be prompted for a password if you put a correct rsa pub key in:

%%writefile ~/.ssh/authorized_keys
CONTENT_OF_ID_RSA_PUB_FILE

@bikcrum Thank you so much for this helpful post! It really saves me!

http://localhost:4040/api/tunnels is not available. Hence, giving a

ConnectionError: HTTPConnectionPool(host='localhost', port=4040): Max retries exceeded with url: /api/tunnels (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x7c1f67e215a0>: Failed to establish a new connection: [Errno 111] Connection refused'))

I'd likely at least amend this to include a direct reference to NGrok, if that's what you want to use for tunneling. Blindly downloading binaries from other sites generally isn't recommended.

I'd also recommend not completely overwriting the sshd_config file, but using a local config for the user, instead (read: there's likely a better way to do this tunnel).