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nut
The Network UPS Tools repository. UPS management protocol Informational RFC 9271 published by IETF at https://www.rfc-editor.org/info/rfc9271 Please star NUT on GitHub, this helps with sponsorships!
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synology_UPS_Shutdown-Monitoring
Script to monitor APC Network Management Card for Synology UPS shutdown and load shedding
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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.
Check https://networkupstools.org/ - should be what you're looking for. I'm running it right on my proxmox host so it is also the nut server and can send the shutdown signals to the clients and shutdown last finally.
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