The May syslog-ng newsletter is now on-line: Learning syslog-ng, the easier way Why syslog over UDP loses messages and how to avoid that Upgrade problems from syslog-ng 3 to 4 It is available at https://www.syslog-ng.com/community/b/blog/posts/the-syslog-ng-insider-2023-05-learning-udp-upgrading syslog-ng logo

Version 4 of syslog-ng was released last December. Quite a few people use it already in production. How can you install it for a test drive? It might be already available in your Linux distribution. There are also several unofficial repositories with the latest syslog-ng. From this blog, you can learn how to check your syslog-ng version, where to check if it is not yet installed, and a few additional resources, if you want to install the latest version from unofficial repositories.

Version 4 of syslog-ng works perfectly well in version 3 compatibility mode. However, if you want to use the syslog-ng 4 features, you need to be aware of some significant changes. If you have a simple configuration, like those in Linux distributions, then simply rewriting the version string is most likely enough. However, if you use PatternDB or JSON parsing, any Python code, or an Elasticsearch, or MongoDB destination, you have to be aware of the changes.

The April syslog-ng newsletter is now on-line: Installing a syslog-ng 4 development snapshot on FreeBSD Getting data to Splunk Streaming deduplication in syslog-ng It is available at https://www.syslog-ng.com/community/b/blog/posts/the-syslog-ng-insider-2023-04-freebsd-splunk-deduplication syslog-ng logo

Getting data to Splunk can be challenging. Syslog is still the most important data source, and it can provide you with hard-to-solve problems (for example, like high volume, non-compliant messages, unreliable network protocol (UDP), and more). The syslog-ng Premium Edition (PE) and syslog-ng Store Box (SSB) by One Identity can make these challenges manageable. https://www.syslog-ng.com/community/b/blog/posts/getting-data-to-splunk syslog-ng logo

Version 4 of syslog-ng is now available. The good news is that it is fully backwards compatible. If the version string in your configuration is set to a 3.X version, it will work as expected even after updating to version 4. Of course you might run into corner cases, but I had no problems even with complex configurations. Today, we learn about updating syslog-ng, and some of the new features of syslog-ng 4.

One of the most popular destinations in syslog-ng is Elasticsearch (and OpenSearch, Zinc, Humio, etc.). The 12th part of my syslog-ng #tutorial shows you how to send log messages to Elasticsearch. You can watch the video on YouTube: and the complete playlist at https://www.youtube.com/playlist?list=PLoBNbOHNb0i5Pags2JY6-6wH2noLaSiTb Or you can read the rest the tutorial as a blog at: https://www.syslog-ng.com/community/b/blog/posts/syslog-ng-101-part-12-elasticsearch-and-opensearch-zinc-humio-etc syslog-ng logo

This is the eleventh part of my syslog-ng tutorial. Last time, we learned about message parsing using syslog-ng. Today, we learn about enriching log messages. You can watch the video on YouTube: and the complete playlist at https://www.youtube.com/playlist?list=PLoBNbOHNb0i5Pags2JY6-6wH2noLaSiTb Or you can read the rest the tutorial as a blog at: https://www.syslog-ng.com/community/b/blog/posts/syslog-ng-101-part-11-enriching-log-messages syslog-ng logo

This is the tenth part of my syslog-ng tutorial. Last time, we learned about syslog-ng filters. Today, we learn about message parsing using syslog-ng. You can watch the video on YouTube: and the complete playlist at https://www.youtube.com/playlist?list=PLoBNbOHNb0i5Pags2JY6-6wH2noLaSiTb Or you can read the rest the tutorial as a blog at: https://www.syslog-ng.com/community/b/blog/posts/syslog-ng-101-part-10-parsing syslog-ng logo

This is the ninth part of my syslog-ng tutorial. Last time, we learned about macros and templates. Today, we learn about syslog-ng filters. At the end of the session, we will see a more complex filter and a template function. You can watch the video on YouTube: and the complete playlist at https://www.youtube.com/playlist?list=PLoBNbOHNb0i5Pags2JY6-6wH2noLaSiTb Or you can read the rest the tutorial as a blog at: https://www.syslog-ng.com/community/b/blog/posts/syslog-ng-101-part-9-filters syslog-ng logo