Run ZDC to verify the migrated ZENworks 2020 Appliance System.
For more information, see ZENworks Diagnostic Center in ZENworks Command Line Utilities Reference,
Ensure that all ZENworks services are running: novell-zenworks-configure -c SystemStatus
Ensure that the ZooKeeper service is up and running at all times to enable proper functioning of various ZENworks components. To verify the status of the ZooKeeper service, see the Diagnostics page in ZCC. For more information on the ZooKeeper component, see ZENworks Server in the ZENworks Primary Server and Satellite Reference.
You also need to ensure that the firewall allows client connections from other Primary Servers to the ZooKeeper services on port 6789. If the Primary Servers in your zone are unable to access the ZooKeeper service, then to open the ports, you can run the following Configure action on the server in which ZooKeeper is enabled.
novell-zenworks-configure -c ClusterFirewallConfigureAction -Doperation=add -Dservice=zookeeper
However, if the Primary Server that is within the DMZ is unable to access the ZooKeeper service within the corporate network, then you need to manually open the port 6789 in the corporate firewall.
For more information on the ZooKeeper ports, see ZENworks 2020 TCP and UDP Ports.