[syslog-ng] Insider 2018-12: 3.19 release; optimizing Splunk; Python source; HTTP batch;

Czanik, P├ęter peter.czanik at balabit.com
Thu Dec 13 14:59:46 UTC 2018

Dear syslog-ng users,

This is the 71st issue of syslog-ng Insider, a monthly newsletter that
brings you syslog-ng-related news.


Version 3.19 of syslog-ng released

Version 3.19 of syslog-ng has been released with plenty of new
features and bugfixes. Performance of the HTTP destination improved
thanks to load-balancing to multiple servers. You can use this to send
the messages to a set of ingestion nodes or indexers of your SIEM
solution if a single node cannot handle the load. The new Slack
destination allows you to send alerts to a Slack channel.

Read the complete list of changes at

Optimize your Splunk infrastructure using new syslog-ng features

Learn how to use less resources for better performance in Splunk! Many
people have been using syslog-ng for decades without knowing that it
receives new features as well as bugfixes. While many Linux utilities
are practically in maintenance mode, syslog-ng keeps evolving
constantly. A strong focus in recent years has been on message parsing
and destination drivers.

After my talk at Suricon, Splunk users explained how they will change
their syslog-ng configurations to optimize their Splunk


Python source in syslog-ng

Using syslog-ng 3.18 and newer releases, you can write new source
drivers for syslog-ng in Python. While performance is not as good as
C, you gain flexibility and ease of implementation. There are quite a
few log sources without a ready to use C API, but with a Python API.
Using the Python source of syslog-ng you can leverage these.


Bulk mode message sending to Elasticsearch with syslog-ng http() destination

Learn how to send log messages in bulk mode to your Elasticsearch
server with syslog-ng. Bulk mode offers better performance, because it
sends multiple log messages in a single POST request.



You can watch our past webinars:

* Log ingestion to Splunk HEC: https://www.brighttalk.com/webcast/16207/338190

* High performance log streaming to HDFS with syslog-ng:

Your feedback and news, or tips about the next issue are welcome. To
read this newsletter online, visit: https://syslog-ng.com/blog/

Peter Czanik (CzP) <peter.czanik at balabit.com>
Balabit (a OneIdentity company) / syslog-ng upstream

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