Elastic Stack is a group of open source products from Elastic. It was earlier known as the ELK Stack. It is an amazing and powerful collection of three open source projects namely Elasticsearch, Logstash, and Kibana. These three technologies work well with each other despite being separate projects.
Figure 3. Elastic Stack components
Elastic Stack is an end-to-end log analysis solution that helps in deep searching, analyzing, and visualizing the logs generated from different machine. The Elastic Stack includes numerous capabilities that help users easily build solutions focused in three areas:
Value added features such as machine learning, alerting, maps services, canvas, cross cluster replication, cross cluster search, field and document level security, and cluster authentication can all be leveraged to help most of the information about your data. Many of these capabilities are free and others can be licensed through an Elastic Subscription that includes support. For more information, contact Elastic team.