I need to change the hostname or the ip address of a Libra Esva cluster node.
You can not change any network configuration when a Libra Esva Cluster is up and running. The web interface has all relevant configurations under System->Appliance->Network Configuration disabled on purpose. Do not try to change any of the information above from console as the normale cluster operation will fail.
If you need to amend any of these settings the correct procedure is as follows:
- Destroy the Libra Esva Cluster: this will leave the two nodes healthy with their configuration in place, delivering all email traffic as single nodes.
- Change the network settings on every single node
- Re-create the Cluster setup, by running the Cluster Wizard