Stream: jupyterlab-hub

Topic: security warning

view this post on Zulip Stephen Yeager (Jan 23 2021 at 15:28):

I was booted off Jupyterhub yesterday afternoon, and ever since then Chrome is giving me a "Not Secure" warning when trying to access jupyterhub.ucar.edu (either Cheyenne or DAV). Can anyone tell me what's going on?
Jupyter-Warning.png

view this post on Zulip Keith Lindsay (Jan 23 2021 at 19:09):

I get the same message. It looks like the certificate for jupyterhub.ucar.edu expired yesterday (Expired: Friday, January 22, 2021 at 4:59:59 PM Mountain Standard Time). I just sent an email to cislhelp@ucar.edu asking them to look into this.

view this post on Zulip Kevin Paul (Jan 23 2021 at 19:32):

Thank you, @Keith Lindsay!

view this post on Zulip Keith Lindsay (Jan 24 2021 at 04:03):

CISL reports back: I've requested an updated certificate form the security office. I'll put the new certificate in place as soon as I get it.
and
that a workaround is to use the ssh tunnel as documented at https://www2.cisl.ucar.edu/resources/jupyter-and-ipython

view this post on Zulip Anderson Banihirwe (Jan 25 2021 at 13:31):

For anyone who wants to use the Hub in the meantime, there's a "hidden" browser feature that allows bypassing the SSL certificate warning. While you're on the certificate issue page, type thisisunsafe or badidea on your keyboard.

Needless to say use of this "feature" is a bad idea and is unsafe :smiley:

view this post on Zulip Anderson Banihirwe (Jan 25 2021 at 13:39):

CISL reports back: I've requested an updated certificate form the security office. I'll put the new certificate in place as soon as I get it.
and
that a workaround is to use the ssh tunnel as documented at https://www2.cisl.ucar.edu/resources/jupyter-and-ipython

:megaphone: Shameless plug :megaphone: ;) : check out jupyter-forward - Jupyter-forward simplifies the process of running jupyter lab on a remote machine by performing tedious tasks (such as setting the SSH Tunnel, etc,) on behalf of the users:

Here are some examples:

view this post on Zulip Anderson Banihirwe (Jan 25 2021 at 13:43):

:warning:️ Note: If you are interested in using jupyter-forward, You should install jupyter-forward on your local computer and all commands must be run from your local computer instead of the remote host (Cheyenne, Casper, etc...)

view this post on Zulip Stephen Yeager (Jan 25 2021 at 17:06):

Jupyterhub is back.

Last updated: May 16 2025 at 17:14 UTC