I am using two elasticsearch in two separate servers. one is 6.8.0 and other is 7.3.0.
I am planning to use metricbeat on several servers and visualize in elasticsearch server by kibana.
The problem is: when I configure elasticsearch to accept request from all servers in 6.8.0, I have simply added network.host: 0.0.0.0 in the elasticsearch.yml file and its working fine.
But, when I do the same in 7.3.0, it stops automatically after some seconds, I cannot curl http://127.0.0.1:9200.
I have checked the firewall, there is no problem there.
Can you please, help.