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Elasticsearch security

• XPack is mandatory, all traffic will be encrypted and password protected.

• Each Elasticsearch server needs to communicate with each other and the firewall ports need to be open. Default transport port: 9300

• Kibana needs to communicate with the Elasticsearch nodes that are processing Kibana requests.

• The agents and web server (gateway) need access to the Elasticsearch servers as described in the firewall section. Default port: 9200

Review the full Elasticsearch comprehensive security guide.