Recipe: Apache Logs + rsyslog (parsing) + Elasticsearch
Recipe: rsyslog + Redis + Logstash
Replaying Elasticsearch Slowlogs with Logstash and JMeter
Recipe: Reindexing Elasticsearch Documents with Logstash
Monitoring rsyslog’s Performance with impstats and Elasticsearch
Using Elasticsearch Mapping Types to Handle Different JSON Logs
Parsing and Centralizing Elasticsearch Logs with Logstash
Encrypting Logs on Their Way to Elasticsearch Part 2: TLS Syslog