Maintenance Datacenter (firewall) from 14-12-2021 22:00 CET to 15-12-2021 04:00 CET

Due to an improvement to our datacenter infrastructure, we will, at this time, be moving the active firewall within our datacenter to a different rack.
Since the firewall is part of a redundant set, we do not expect any impact on our service. Only during the failover users might experience a couple of seconds of unavailability.