2. Setting:
1. [elasticsearch]configelasticsearch.yml
| key | value | demo |
| network.host | ip | 192.168.0.1 |
2. [elasticsearch]configjvm.options https://www.elastic.co/guide/en/elasticsearch/reference/current/heap-size.html
| -Xms4g |
| Xmx4g |
3. startup with: [elasticsearch]in: elasticsearch
4. verification: http://localhost:9200
