2024-01-05 10:13:
The websites of the CMS of the University of Freiburg may experience restrictions in accessibility in the coming days, as the IP address will be changed. This is in connection with the necessary conversion of the certificates to the automated ACME process (see the discussion and further information in the admin forum). Instead of a large collective certificate, which is no longer state of the art, a separate certificate is now used for each host or subdomain (wildcard). Due to the number of different web servers, it may not be possible to do this in time for all certificates, which is why warnings about expired certificates may appear. Every operator of their own web server should also use this automation/changeover procedure. Further considerations/actions are necessary for this.