Even if most people ask me to compare systemd-journald vs. syslog-ng, I would say that they complement each other. Systemd-journald excels at collecting local log messages, including those of various system services. The focus of syslog-ng is on central log collection and forwarding the logs to a wide variety of destinations after processing and filtering. Combining the two gives you the most flexibility. Read more at https://www.syslog-ng.com/community/b/blog/posts/systemd-journald-vs-syslog-ng syslog-ng logo