If an engine node is compromised, you can delete its public keys from the administrative node to prevent it from accessing the administrative node. You can recreate these keys after you have recovered the engine node.

  1. Click Settings and then go to Clustering > Engines.
  2. Expand the engine node you wish to remove from the cluster and edit it.
  3. Click Delete under the Public Keys heading to revoke the engine node's access to the administrative node.

    You can use the Save & Download button to create a new key for the engine. See Configuring an engine node for more information.

  4. Click Save.