$ curl http://localhost:9200 { "name" : "elasticsearch-hot", "cluster_name" : "metrics-cluster", "cluster_uuid" : "06nHPLLgTrmZEpYli6JW5w", "version" : { "number" : "6.5.0", "build_flavor" : "default", "build_type" : "tar", "build_hash" : "c53b7d3", "build_date" : "2018-11-08T21:28:50.577384Z", "build_snapshot" : false, "lucene_version" : "7.5.0", "minimum_wire_compatibility_version" : "5.6.0", "minimum_index_compatibility_version" : "5.0.0" }, "tagline" : "You Know, for Search" }