Connecting Logstash to Elasticsearch - Instaclustr
Chatter From a Charlatan...: Logstash Profiling: Time in the Pipeline
logstash costume grok with if else condition - Stack Overflow
GitHub - ip2location/logstash-filter-ip2proxy: IP2Proxy filter plugin for Logstash enables Logstash's users to query an IP address if it was being used as open proxy, web proxy, VPN servers and TOR exits. It
Logstash Filter JSON | How to use logstash filter JSON?
Tutorial: Logstash Grok Patterns with Examples - Coralogix
logstash costume grok with if else condition - Stack Overflow
Using if else in logstash filter - Logstash - Discuss the Elastic Stack
ELK - 31. LOGSTASH : THE GROK FILTER (PRINCIPLES AND USE) - YouTube
Structuring data with Logstash
Logstash Filter JSON | How to use logstash filter JSON?
Example of Elastic Logstash pipeline input, filter and output - DevOpsSchool.com