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The following links were very useful while writing this material and performing the tests mentioned in it.
- Elasticsearch Reference - https://www.elastic.co/guide/en/elasticsearch/reference/7.8/index.html
- Logstash Reference - https://www.elastic.co/guide/en/logstash/7.8/index.html
- Filebeat Reference - https://www.elastic.co/guide/en/beats/filebeat/7.8/index.html
- Kibana Guide - https://www.elastic.co/guide/en/kibana/7.8/index.html
- Elastic Blog - https://www.elastic.co/blog/