For the last six months, Elastic’s communication centered around the upcoming Elastic Stack 5.0. And finally it is here: tons of new features, improved performance and a single version number for all Elastic products. Compatibility with syslog-ng was checked already during the alpha phase of development, as syslog-ng is becoming popular among Elasticsearch users: it can greatly simplify logging to Elasticsearch.

As Elastic Stack 5.0.0 is now generally available, here is a quick how-to guide to get you started with syslog-ng 3.8.1 and Elasticsearch 5.0.0 on RHEL/CentOS 7:

https://www.balabit.com/blog/syslog-ng-and-elasticsearch-5-getting-started-on-rhelcentos/