[DOCS] Adds native realm security settings

x-pack/docs/en/security/authentication/native-realm.asciidoc

@@ -47,42 +47,9 @@ xpack:
 . Restart Elasticsearch.
 
 [[native-settings]]
-.Native Realm Settings
-[cols="4,^3,10"]
-|=======================
-| Setting             | Required  | Description
-
-| `type`              | yes       | Indicates the realm type. Must be set to `native`.
-
-| `order`             | no        | Indicates the priority of this realm within
-                                    the realm chain. Realms with a lower order
-                                    are consulted first. Although not required,
-                                    we recommend explicitly setting this value
-                                    when you configure multiple realms. Defaults
-                                    to `Integer.MAX_VALUE`.
-
-| `enabled`           | no        | Indicates whether this realm is enabled or
-                                    disabled. When set to `false`, the realm is
-                                    not added to the realm chain and therefore
-                                    is inactive. Defaults to `true`.
-
-| `cache.ttl`         | no        | Specifies the time-to-live for cached user
-                                    entries. A user's credentials are cached for
-                                    this period of time. Specify the time period
-                                    using the standard Elasticsearch
-                                    {ref}/common-options.html#time-units[time units].
-                                    Defaults to `20m`.
-
-| `cache.max_users`   | no        | Specifies the maximum number of user entries
-                                    that can be cached at any given time. Defaults
-                                    to 100,000.
-
-| `cache.hash_algo`   | no        | Specifies the hashing algorithm that is used
-                                    for the cached user credentials. See
-                                    <<cache-hash-algo, Cache hash algorithms>>
-                                    for the possible values. (Expert Setting)
-|=======================
+==== Native Realm Settings
 
+See {ref}/ref-native-settings.html[Native Realm Settings]. 
 
 [[managing-native-users]]
 ==== Managing Native Users

x-pack/docs/en/settings/security-settings.asciidoc

@@ -127,6 +127,7 @@ The valid settings vary depending on the realm type. For more
 information, see {xpack-ref}/setting-up-authentication.html[Setting Up Authentication].
 
 [float]
+[[ref-realm-settings]]
 ===== Settings Valid for All Realms
 
 `type`::
@@ -141,6 +142,27 @@ recommended when you configure multiple realms. Defaults to `Integer.MAX_VALUE`.
 Indicates whether a realm is enabled. You can use this setting to disable a
 realm without removing its configuration information. Defaults to `true`.
 
+[[ref-native-settings]]
+[float]
+===== Native Realm Settings
+
+For a native realm, the `type` must be set to `native`. In addition to the 
+<<ref-realm-settings,settings that are valid for all realms>>, you can specify  
+the following optional settings: 
+
+`cache.ttl`:: The time-to-live for cached user entries. User credentials are 
+cached for this period of time. Specify the time period using the standard 
+{es} <<time-units,time units>>. Defaults to `20m`.
+
+`cache.max_users`:: The maximum number of user entries that can live in the 
+cache at any given time. Defaults to 100,000.
+
+`cache.hash_algo`:: (Expert Setting) The hashing algorithm that is used for the 
+in-memory cached user credentials. For possible values, see 
+{xpack-ref}/controlling-user-cache.html[Cache hash algorithms]. Defaults to 
+`ssha256`.
+
+
 [[ref-users-settings]]
 
 [float]