anchor.diff:  [[ls-http]]
   ==== Connecting with HTTP/HTTPS
   
  -When you set the `protocol` option to `http`, Logstash communicates with the Elasticsearch cluster through the REST APIs over HTTP.
  +Logstash communicates with the Elasticsearch cluster through the REST APIs over HTTP.
   
   [float]
   [[ls-http-auth]]
  
positive.code: [[logstash]]
  === Using Logstash with Shield
  
  IMPORTANT: Shield 1.0+ is compatible with Logstash 1.5 and above.
  
  Logstash provides Elasticsearch https://www.elastic.co/guide/en/logstash/current/plugins-outputs-elasticsearch.html[output], https://www.elastic.co/guide/en/logstash/current/plugins-inputs-elasticsearch.html[input] and https://www.elastic.co/guide/en/logstash/current/plugins-filters-elasticsearch.html[filter] plugins
  used to index and retrieve documents through HTTP, transport or client node protocols.
  
negative.code: --------------------------------------------------
  input { ... }
  output {
    elasticsearch_java {
      protocol => "transport"
      host => ... # string (optional)
      cluster => ... # string (optional)
  