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    • Fedora 44, CentOS 7 and Amazon Linux syslog-ng questions

      Fedora 44, CentOS 7 and Amazon Linux syslog-ng questions

      Peter Czanik
      Peter Czanik
      Fedora 44 was announced last week: syslog-ng 4.11 is part of it. While checking the Fedora Copr build service for Fedora 44, I realized that CentOS 7 and Amazon Linux 2023 packages are also there. I have a few questions for you! Fedora 44 The availab…
      • 6 May 2026
    • Support for OpenSSL 4.0?

      Support for OpenSSL 4.0?

      Peter Czanik
      Peter Czanik
      Although OpenSSL 4.0 released just two weeks ago, the syslog-ng project has already received a GitHub issue complaining that we do not support it. So, before we would allocate too much effort on it: what should we expect? OpenSSL 4.0 was announced on…
      • 28 Apr 2026
    • New performance tuning possibilities in syslog-ng

      New performance tuning possibilities in syslog-ng

      Peter Czanik
      Peter Czanik
      On April’s fool’s day, I shared that syslog-ng can reach 7 million EPS. This test lab result was in part possible thanks to a few performance enhancements coming to syslog-ng version 4.12. How 7 million EPS is possible? Before diving deep…
      • 22 Apr 2026
    • Streaming syslog-ng data to your lakehouse using OpenTelemetry

      Streaming syslog-ng data to your lakehouse using OpenTelemetry

      Peter Czanik
      Peter Czanik
      Version 4.11.0 of syslog-ng contains contributions from Databricks related to OAuth2 authentication. Recently, they published a blog about how this enables their customers to send logs to their data lake using syslog-ng and the OpenTelemetry protocol…
      • 15 Apr 2026
    • The syslog-ng Insider 2026-04: wildcard-file; fix; UDP

      The syslog-ng Insider 2026-04: wildcard-file; fix; UDP

      Peter Czanik
      Peter Czanik
      Dear syslog-ng users, This is the 139th issue of syslog-ng Insider, a monthly newsletter that brings you syslog-ng-related news. NEWS Automatic configuration of the syslog-ng wildcard-file() source Reading files and monitoring directories became a l…
      • 8 Apr 2026
    • Compiling syslog-ng on an old Mac

      Compiling syslog-ng on an old Mac

      Peter Czanik
      Peter Czanik
      I have an aging, but fully functional MacBook. I bought it for syslog-ng testing, but I also use for watching movies. Homebrew no more fully supports old, Intel-based Macs. This blog helps to compile the latest syslog-ng release on these old, but oth…
      • 24 Mar 2026
    • Central log collection - more than just compliance

      Central log collection - more than just compliance

      Peter Czanik
      Peter Czanik
      I often hear, even at security conferences that “no central log collection here” or “we have something due to compliance”. Central logging is more than just compliance. It makes logs easier to use, available and secure, thus m...
      • 18 Mar 2026
    • The syslog-ng Insider 2026-03: 4.11.0 release; OpenSearch; ElasticSearch

      The syslog-ng Insider 2026-03: 4.11.0 release; OpenSearch; ElasticSearch

      Peter Czanik
      Peter Czanik
      Dear syslog-ng users, This is the 138th issue of syslog-ng Insider, a monthly newsletter that brings you syslog-ng-related news. NEWS Version 4.11.0 of syslog-ng is now available Version 4.11.0 of syslog-ng is now available. The main attraction is …
      • 11 Mar 2026
    • Syslog-ng 4.11.0 packaging status

      Syslog-ng 4.11.0 packaging status

      Peter Czanik
      Peter Czanik
      Committed users compile syslog-ng for themselves from source. However, most of us wait until a software is available as an easy-to-install package for our operating system of choice. In this blog post, you will see an overview on the available packag…
      • 3 Mar 2026
    • Version 4.11.0 of syslog-ng is now available

      Version 4.11.0 of syslog-ng is now available

      Peter Czanik
      Peter Czanik
      Version 4.11.0 of syslog-ng is now available. The main attraction is the brand new Kafka source, but there are many other smaller features and improvements, as well. Before you begin If you happen to use Debian, Ubuntu or the RHEL family of operating…
      • 25 Feb 2026
    • UDP reliability improved in syslog-ng Debian packaging

      UDP reliability improved in syslog-ng Debian packaging

      Peter Czanik
      Peter Czanik
      UDP log collection is a legacy feature that does not provide any security or reliability, but is still in wide use. You can improve its reliability using eBPF on Linux in recent syslog-ng versions. Support for eBPF was added to Debian packages while …
      • 17 Feb 2026
    • The syslog-ng Insider 2026-02: stats-exporter; blank filter; Kafka source

      The syslog-ng Insider 2026-02: stats-exporter; blank filter; Kafka source

      Peter Czanik
      Peter Czanik
      Dear syslog-ng users, This is the 137th issue of syslog-ng Insider, a monthly newsletter that brings you syslog-ng-related news. NEWS The syslog-ng stats-exporter() now has all functionality of syslog-ng-ctl The syslog-ng stats-exporter() allows yo…
      • 12 Feb 2026
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