The syslog-ng health check
Version 4.2 of syslog-ng introduced a healthcheck option to syslog-ng-ctl. It prints three syslog-ng-related metrics on screen – if it can reach syslog-ng, that is. You can use it from scripts to monitor the health of syslog-ng.
https://www.syslog-ng.com/community/b/blog/posts/the-syslog-ng-health-check
