[DOCS] Secure settings specified per node
Make it clear that secure settings have to be set
on each cluster node.
[[secure-settings]]
-=== Secure Settings
+=== Secure settings
Some settings are sensitive, and relying on filesystem permissions to protect
their values is not sufficient. For this use case, Elasticsearch provides a
@@ -16,6 +16,10 @@ Elasticsearch.
NOTE: The elasticsearch keystore currently only provides obfuscation. In the future,
password protection will be added.
+These settings, just like the regular ones in the `elasticsearch.yml` config file,
+need to be specified on each node in the cluster. Currently, all secure settings
+are node-specific settings that must have the same value on every node.
+
[float]
[[creating-keystore]]
=== Creating the keystore
