Elasticsearch version 7.2 and version 6.8.1-- network.host: is getting failed

Hello everyone, I have installed elasticsearch 7.2 on my ubuntu server running on AWS EC2.

I have set the heap memory to minimal level and started the ES service, with default elasticsearch.yml settings the ES is working fine in localhost, i.e., when i pass the command "curl localhost:9200" i am getting the result.

I have to expose this ES service for public reachability, i.e., from internet browser.
for which I have opened up the port 9200 in AWS EC2 security group to anyone ( and modified the elasticsearch.yml file network.host parameter to

once after updating this and restarting the ES service, it is getting failed. i have tried it with Elasticsearch v6.8.1 also.


Java Version: openjdk version "11.0.3" 2019-04-16
JAVA_HOME: /usr/lib/jvm/java-11-openjdk-amd64
//# ======================== Elasticsearch Configuration =========================

NOTE: Elasticsearch comes with reasonable defaults for most settings.

Before you set out to tweak and tune the configuration, make sure you

understand what are you trying to accomplish and the consequences.

The primary way of configuring a node is via this file. This template lists

the most important settings you may want to configure for a production cluster.

Please consult the documentation for further information on configuration options:


---------------------------------- Cluster -----------------------------------

Use a descriptive name for your cluster:

cluster.name: orgfarm-cluster

------------------------------------ Node ------------------------------------

Use a descriptive name for the node:

node.name: orgfarm-node

Add custom attributes to the node:

#node.attr.rack: r1

----------------------------------- Paths ------------------------------------

Path to directory where to store the data (separate multiple locations by comma):

path.data: /var/lib/elasticsearch

Path to log files:

path.logs: /var/log/elasticsearch

----------------------------------- Memory -----------------------------------

Lock the memory on startup:

#bootstrap.memory_lock: true

Make sure that the heap size is set to about half the memory available

on the system and that the owner of the process is allowed to use this


Elasticsearch performs poorly when the system is swapping the memory.

---------------------------------- Network -----------------------------------

Set the bind address to a specific IP (IPv4 or IPv6):


Set a custom port for HTTP:

http.port: 9200

For more information, consult the network module documentation.

--------------------------------- Discovery ----------------------------------

Pass an initial list of hosts to perform discovery when new node is started:

The default list of hosts is ["", "[::1]"]

#discovery.zen.ping.unicast.hosts: ["host1", "host2"]

Prevent the "split brain" by configuring the majority of nodes (total number of master-eligible nodes / 2 + 1):


For more information, consult the zen discovery module documentation.

---------------------------------- Gateway -----------------------------------

Block initial recovery after a full cluster restart until N nodes are started:

#gateway.recover_after_nodes: 3

For more information, consult the gateway module documentation.

---------------------------------- Various -----------------------------------

Require explicit names when deleting indices:

#action.destructive_requires_name: true

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