Insider 2017-01: syslog-ng 3.9.1; SearchGuard; FOSDEM & SCALE;

Dear syslog-ng users,

This is the 54th issue of the syslog-ng Insider, a monthly newsletter that brings you syslog-ng-related news.


syslog-ng 3.9.1 has been released

Right before Christmas syslog-ng version 3.9.1 has been released, four months after the 3.8.1 release. It contains tons of bugfixes and many small incremental changes compared to the previous version. Performance has been improved at multiple places, Big Data drivers were updated, and secure logging to Elasticsearch is now possible using SearchGuard. For a complete list, read where you can also find the source code .tgz file.

For binary packages check

Securing Elasticsearch access with SearchGuard

Using syslog-ng to index events to your Elasticsearch cluster has been possible natively for some time now. Read about using Search Guard support in syslog-ng 3.9 to encrypt and authenticate your connections to Elasticsearch.

Installing the latest syslog-ng DEB packages

The syslog-ng application is part of all major Linux distributions, and you can usually install syslog-ng from the official repositories. However, if you want to use the features of newer syslog-ng versions (for example, send log messages to Elasticsearch or Apache Kafka), you have to either compile the syslog-ng from source, or install it from unofficial repositories. This post explains you how to do that on DEB packages based systems.

RPM packages from syslog-ng git HEAD

There are some situations, when even the latest stable release is not good enough as a bug was found and fixed after release. Or maybe you want to check the latest new features that are not yet available in a release. If you use an RPM-based distribution, packages generated from Git HEAD are right for you:



Your feedback and news tips about the next issue is welcome at documentation(at)

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