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Durham University

COSMA

Jupyter Hub

A Jupyter Hub is available on the login7b login node.

Run this command in the terminal of your local machine:

ssh -N -L 8443:login7b.cosma.dur.ac.uk:443 USER@login7b.cosma.dur.ac.uk

where USER is the username you use for SSH access. Then point your web browser to https://localhost:8443.

Alternative access methods

Running Firefox on the COSMA login node

Run this command in the terminal of your local machine:

ssh -X USER@login7b.cosma.dur.ac.uk firefox https://localhost:443

This will launch a web browser on the login node, and so will require a fast Internet connection to be useable.

Forward COSMA traffic through a local proxy

Run this command in the terminal of your local machine:

ssh -D 1234 USER@login7b.cosma.dur.ac.uk

where USER is the username you use for SSH access, and 1234 is an example value for the port forwarding; if 1234 gives an error you can pick a higher value that works, just remember to update it in your browser settings (instructions below).

Then reconfigure your local web browser with a HTTP proxy. If you use Firefox, run:

firefox -P

which will create a new profile. You can call it i.e. cosma. Then, go to Edit > Preferences > General > Network Settings, select “Manual proxy configuration” and set “SOCKS host” to localhost, port 1234 (or whatever port you specified in the ssh command). Then remove the localhost entry in the “No proxy for” box, and click “OK”. For the future runs, you will be able to select pre-configured cosma profile you have just created.

If you use Chromium, run:

chromium-browser --proxy-server="socks5://localhost:1234" https://localhost:443

updating the 1234 if necessary.

Finally, open https://localhost:443 to login to the Jupyter Hub.

Logging in to Jupyter Hub

Please use your COSMA login/password. If you do not know your password, please email for a reset.

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