anchor.diff:  ----
   ====
   
  -*F-5 Load balancer and X-Forwarded-For Enabled*
  -
  -If you are attempting to use a F-5 Load balancer in front of Kibana with 'X-Forwarded-For'
  -enabled, it can cause an issue where the Elasticsearch `Searchguard` plugin is
  -unable to correctly accept connections from Kibana and may see the following
  -from Kibana:
  -
  +*F-5 Load Balancer and X-Forwarded-For Enabled*
  +
  +If you are attempting to use a F-5 load balancer in front of Kibana with
  +`X-Forwarded-For` enabled, this can cause an issue in which the Elasticsearch
  +`Searchguard` plug-in is unable to correctly accept connections from Kibana.
  +
  +.Example Kibana Error Message
   ----
   Kibana: Unknown error while connecting to Elasticsearch
   
  
positive.code: 
  To configure Searchguard to ignore the extra header:
  
  . Scale down all Fluentd pods
  . Scale down Elasticsearch after the Fluentd pods have terminated
  . Add `searchguard.http.xforwardedfor.header: DUMMY` to the Elasticsearch
  configuration section
  +
  ====
  ----
  oc edit configmap/logging-elasticsearch <1>
  ----
  <1> This approach requires that Elasticsearch's configs are within a configmap
  ====
  +
  . Scale Elasticsearch back up
  . Scale up all Fluentd pods
  
  [[sending-logs-to-an-external-elasticsearch-instance]]
  == Sending Logs to an External Elasticsearch Instance
  
  Fluentd sends logs to the value of the `*ES_HOST*`, `*ES_PORT*`, `*OPS_HOST*`,
  and `*OPS_PORT*` environment variables of the Elasticsearch deployment
  configuration. The application logs are directed to the `*ES_HOST*` destination,
  and operations logs to `*OPS_HOST*`.
  
  [NOTE]
  ====
  
negative.code: dedicated region within your cluster, using a
  xref:../admin_guide/managing_projects.adoc#using-node-selectors[node selector].
  
  To configure a node selector, specify the `es-nodeselector` configuration
  option at deployment. This applies to all Elasticsearch deployments; if you need
  to individualize the node selectors, you must manually edit each deployment
  configuration after deployment.
  