[DOCS] Merges duplicate pages for PKI realms (#49206)

Author: lcawl

docs/reference/redirects.asciidoc

@@ -986,4 +986,13 @@ See:
 * {packetbeat-ref}/securing-beats.html[{packetbeat}]
 * {winlogbeat-ref}/securing-beats.html[{winlogbeat}]
 
+[role="exclude",id="configuring-pki-realm"]
+=== Configuring a PKI realm
+
+See <<pki-realm>>.
+
+[role="exclude",id="pki-settings"]
+==== PKI realm settings
+
+See <<ref-pki-settings>>.
 

x-pack/docs/en/security/authentication/configuring-pki-realm.asciidoc

@@ -1,30 +1,13 @@
-[role="xpack"]
-[[configuring-pki-realm]]
-=== Configuring a PKI realm
-
-You can configure {es} to use Public Key Infrastructure (PKI) certificates to
-authenticate users. This requires clients connecting directly to {es} to
-present X.509 certificates. The certificates must first be accepted for
-authentication on the SSL/TLS layer on {es}. Only then they are optionally
-further validated by a PKI realm.
-
-Users may also use PKI certificates to authenticate to {kib}, however this
-requires some <<pki-realm-for-proxied-clients,additional configuration>>. On
-{es}, this configuration enables {kib} to act as a proxy for SSL/TLS
-authentication and to submit the client certificates to {es} for further
-validation by a PKI realm.
-
-For more general information, see <<pki-realm>>.
-
-[float]
-[role="xpack"]
 [[pki-realm-for-direct-clients]]
 ==== PKI authentication for clients connecting directly to {es}
 
 To use PKI in {es}, you configure a PKI realm, enable client authentication on
-the desired network layers (transport or http), and map the Distinguished Name
-(DN) from the Subject field in the user certificate to roles by using the
-<<security-api-role-mapping,role-mapping API>> or the role-mapping file.
+the desired network layers (transport or http), and map the Distinguished Names
+(DNs) from the Subject field in the user certificates to roles. You create the mappings in a role mapping file or use the role mappings API.
+
+If you want the same users to also be authenticated using certificates when they connect to {kib}, you must configure the {es} PKI realm to
+<<pki-realm-for-proxied-clients,allow delegation>> and to
+{kibana-ref}/kibana-authentication.html#pki-authentication[enable PKI authentication in {kib}].
 
 You can also use a combination of PKI and username/password authentication. For
 example, you can enable SSL/TLS on the transport layer and define a PKI realm to
@@ -216,8 +199,6 @@ alternative to role mapping.
 
 --
 
-[float]
-[role="xpack"]
 [[pki-realm-for-proxied-clients]]
 ==== PKI authentication for clients connecting to {kib}
 
@@ -288,4 +269,3 @@ PUT /_security/role_mapping/direct_pki_only
 
 <1> only when this metadata field is set (it is *not* `null`) the user has been
 authenticated in the delegation scenario.
-

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

@@ -2,26 +2,16 @@
 [[pki-realm]]
 === PKI user authentication
 
-You can configure {stack} {security-features} to use Public Key Infrastructure
-(PKI) certificates to authenticate users in {es}. This requires clients to
-present X.509 certificates.
+You can configure {es} to use Public Key Infrastructure (PKI) certificates to
+authenticate users. This requires clients connecting directly to {es} to
+present X.509 certificates. The certificates must first be accepted for
+authentication on the SSL/TLS layer on {es}. Only then they are optionally
+further validated by a PKI realm. See <<pki-realm-for-direct-clients>>.
 
-You can use PKI certificates to authenticate users in {es} as well as {kib}.
+You can also use PKI certificates to authenticate to {kib}, however this
+requires some additional configuration. On {es}, this configuration enables {kib} 
+to act as a proxy for SSL/TLS authentication and to submit the client
+certificates to {es} for further validation by a PKI realm. See
+<<pki-realm-for-proxied-clients>>.
 
-To use PKI in {es}, you configure a PKI realm, enable client authentication on
-the desired network layers (transport or http), and map the Distinguished Names
-(DNs) from the user certificates to roles. You create the mappings in a <<pki-role-mapping, role
-mapping file>> or use the {ref}/security-api-put-role-mapping.html[create role mappings API]. If you want the same users to also be
-authenticated using certificates when they connect to {kib}, you must configure the {es} PKI
-realm to
-{ref}/configuring-pki-realm.html#pki-realm-for-proxied-clients[allow
-delegation] and to
-{kibana-ref}/kibana-authentication.html#pki-authentication[enable PKI
-authentication in {kib}].
-
-See also {ref}/configuring-pki-realm.html[Configuring a PKI realm].
-
-[[pki-settings]]
-==== PKI realm settings
-
-See {ref}/security-settings.html#ref-pki-settings[PKI realm settings].
+include::configuring-pki-realm.asciidoc[]

x-pack/docs/en/security/configuring-es.asciidoc

@@ -77,7 +77,7 @@ your subscription. For more information, see https://www.elastic.co/subscription
 ** <<kerberos-realm,Kerberos realms>>
 ** <<ldap-realm,LDAP realms>>
 ** <<native-realm,Native realms>>
-** <<configuring-pki-realm,PKI realms>>
+** <<pki-realm,PKI realms>>
 ** <<saml-realm,SAML realms>>
 
 . Set up roles and users to control access to {es}.
@@ -140,7 +140,6 @@ To walk through the configuration of {security-features} in {es}, {kib}, {ls}, a
 
 include::securing-communications/separating-node-client-traffic.asciidoc[]
 include::authentication/configuring-active-directory-realm.asciidoc[]
-include::authentication/configuring-pki-realm.asciidoc[]
 
 include::reference/files.asciidoc[]
 include::fips-140-compliance.asciidoc[]