When Jupyterhub spawns a Jupyterlab, a random port is taken in one of the workers. This is an issue when the firewall is activated as it blocks this port. Therefore the port selection should be limited to a certain range which will be opened by the firewall with a rule.
When Jupyterhub spawns a Jupyterlab, a random port is taken in one of the workers. This is an issue when the firewall is activated as it blocks this port. Therefore the port selection should be limited to a certain range which will be opened by the firewall with a rule.