The most famous Elasticsearch interface is Kibana; from Elasticsearch version 7.x, they share the same version number. Kibana is an open source pluggable interface and is free to use with Elasticsearch. It provides data visualization and it can be extended with a commercial product called X-Pack that provides security, graph capabilities, and cluster monitoring.
In this chapter, we will mainly cover the Kibana open source components. Kibana with X-Pack offers a lot of functionalities and as these are beyond the scope of this book, I suggest that you look for books related to Kibana for a full description of all Kibana's capabilities.
