I am going to set up a 6.2 ES cluster spanning over three data centers in a Windows environment. I am concerned about the security.
I know how to use IIS to set up https between the clients and the cluster. But is there a way to:
- secure the internal node to node synchronisation without x-pack, and
- limit the access to the data to a few AD users/groups (without having to write passwords in config files?) without x-pack?