Elasticsearch Error: None of the configured nodes is available: []

Problem: Normal access during intranet testing, but deployed to extranet client connection Elasticsearch error: None of the configured nodes is available: []
Cause: By default, Elasticsearch uses the 0.0.0.0 address and opens Port 9200-9300 for the HTTP transport, opens port 9300-9400 for node-to-node communication, deploys to the external network to modify the ELASTICSEARCH.YML configuration
Operation:
Modify Elasticsearch.yml
Reconfigure Network.host, Transport.tcp.port, Http.port to their true IP

Restart ES to
Please see http://blog.csdn.net/lu_wei_wei/article/details/51263153 for specific configuration instructions.

Elasticsearch Error: None of the configured nodes is available: []