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systemd - systemd is a replacement for the init daemon for Linux (either System V or BSD-style).
Prometheus - An open-source systems monitoring and alerting toolkit.
runit - runit is a cross-platform Unix init scheme with service supervision, a replacement for sysvinit...
sysvinit - Savannah is a central point for development, distribution and maintenance of free software, both GNU and non-GNU.
Supervisor - Supervisor is a client/server system that allows its users to monitor and control a number of...
RackTables - Racktables is a nifty and robust solution for datacenter and server room asset management.