I really like Kibana, so last week i had some minutes and did a Grok pattern to use with Logstash and Kibana.
I have many things to do this week, maybe if someone have interest in learning how to setup this, i can make a video or some type of tutorial with all included. This week i will setup another node for ELK Stack and post some prints.
For the moment, here is the pattern for 2 types of log, server.log and server_auth.log : https://github.com/JoaoZanetti/mta
Here is some useful links:
https://www.elastic.co/
https://grokdebug.herokuapp.com/
https://www.elastic.co/guide/en/logstash/current/plugins-filters-grok.html
https://en.wikipedia.org/wiki/Elasticsearch