NUT (Network UPS Tools) is nearly 30 years old, GPL-licensed, and still the best way to monitor your UPS on Linux — but setup can get tricky with older or obscure hardware.
New guide covers the full stack: driver detection, immutable battery thresholds, upsmon shutdown logic, email alerts & testing with forced shutdown commands.
Essential reading for homelab and Linux sysadmins. 🔌
https://www.alanbonnici.com/2026/03/setting-up-nut-ups-software-on-linux.html
#NUT #Linux #Homelab #SelfHosted #OpenSource #SysAdmin #UPS #FOSS #TTMO







