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check_systemd
This systemd check for nagios compatible monitoring systems will report a degraded systemd to your monitoring solution. It can also be used to monitor individual systemd services and timers units.
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InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
In that case, it may be helpful to have a reliability "spin" sinilar how there are AlmaLinux Live Media images that allow trying an AlmaLinux desktop without installing. That is not an option on the other EL8 systems despite AlmaLinux also offering 1:1 compatibility. A reliability spin might include other reliability-focused components such as monitoring-plugins and check_systemd