How To Install Elasticsearch 1.7, Logstash 1.5, and Kibana 4.1 (ELK Stack) on Ubuntu 14.04
The ELK stack consists of Elasticsearch, Logstash, and Kibana that many companies are using to centralize their valuable data. These are the three different open source products that are most commonly used in log analysis in IT environments. The ELK Stack is popular because it fulfils a need in the log analytics space.