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

Recently I found that quite a few of my Twitter and Mastodon followers are working in high-performance computing (HPC). At first I was surprised because I’m not a HPC person, even if I love high performance computers. Then I realized that there are quite few overlaps, and one of my best friends is also deeply involved in HPC. My work, logging, is also a fundamental part of HPC environments. Let’s start with a direct connection to HPC: one of my best friends, Gabor Samu, is working in HPC.

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

Where should I begin. I bought a 4K Blu-Ray player last Autumn. I did not plan to use it for movies: this was the cheapest way of buying a player for all of my various discs. For a couple of months I really only listened to my CD/DVD-Audio/SACD collection on it. While listening to TIDAL, I realized that there is a new David Attenborough series out there (the soundtrack was recommended to me by TIDAL).

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

Unless there is a serious problem, FreeBSD ports usually contains the latest stable syslog-ng release. However, sometimes people want to compile a git snapshot to test a new feature or bugfix. To do that, one way is to generate a syslog-ng release tgz on FreeBSD and edit the syslog-ng port files yourself. However, this needs some practice. As such, an easier solution is to use my weekly development snapshots. Learn how from my latest blog at: https://www.

This is the eighth part of my syslog-ng tutorial. Last time, we learned about network logging. Today, we learn about syslog-ng macros and templates. At the end of the session, we will know how to do a simple log rotation using macros. 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-8-macros-and-templates syslog-ng logo

This is the seventh part of my syslog-ng tutorial. Last time, we learned about syslog-ng destinations and the log path. Today, we learn about syslog-ng network logging. At the end of the session, we will send test messages to a syslog-ng network source. You can watch the video on YouTube: 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-7-networking syslog-ng logo