Hi All,
I just published a blog about how to get started using syslog-ng together with Elasticsearch 5.0. My examples are for RHEL / CentOS 7. Let me know if you are interested in other Linux distributions!
It's available at https://www.balabit.com/blog/syslog-ng-and-elasticsearch-5-getting-started-on-rhelcentos/
CzP