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 that you want to remove from the cluster and click the Pencil icon to edit it.
  3. In the Public Keys section, click Delete to revoke the engine node's access to the administrative node.
    Info:

    You can use the Save & Download button to create a new key for the engine. For more information, see Configuring engine nodes.

  4. Click Save.