Maintenance: Central Firewall

Message-Id: 201901041600
Time: 10.01.2019, 5 pm until 6 pm
Affected: All networks behind the central firewall (all GWDG services and institutes)
Impact: none Scheduled

To retrofit the firewall for 2019 we are going to do small changes and
and updates next thursday.
Relating to our experiences and tests there will be no impacts since
there is always a redundant second machine.