Log analysis for different systems?

Question

Information Security

Good afternoon, tell me the log analyzer for windows 2008/2008r2/ solaris / centos / ubuntu, the main criteria are functionality and open sourceness. I
found alienvault OSSIM now I'm testing, I would like to look at other options.
thanks in advance

Answer 1

https://www.sawmill.co.uk/ analyzes logs very well.

Answer 2

ossim - some kind of heavy
splunk - 500m was not enough for half an hour zabbix
- everything suits but difficulties
with triggers