I have four servers running Webmin, on each I can add the local server on “Cluster Webmin Servers”; I cannot see how/where to add additional servers to the Cluster. In “Webmin Servers Index” I have assed them each to a single group.
Unfortunately, it refers to buttons I don’t see… I had read that before trying here
AND…
Problem solved! Although I read it, I didn’t pay attention. When adding severs to the Server Index, I needed to supply a username and password… that then made the remaining servers show up in the Cluster Add…