Introduction to log analysis with ELK (Elasticsearch)
In this story, I introduce the basics of log analysis and the main concepts of ELK.
Log analysis helps to diagnose problems and to reduce the resolution time.
Logs come mainly from OS (Operating Systems), applications, and network devices. Many logs are unstructured data (example: system logs, CPU data, configuration files, …).
They are usually stored in a hard drive or sent to a log collector.