Time: since 29.06.2019, 12:30
Affected: Users of the Jupyter Hub
Impact: Jupyter Hub unreachable
The Jupyter Hub (https://jupyter.gwdg.de/) is currently not available. The reason to this problem still has to be determined, the operators of the service are notified already.
[Update June 16, 22:30] The issue has been fixed. Jupyter hub is fully available again.