Apcupsd

Apcupsd, short for American Power Conversion (APC) uninterruptible power supply (UPS) daemon, is a utility that runs on Linux, UNIX, macOS and Windows.[1] It allows the computer to interact with APC UPSes. Apcupsd also works with some OEM APC power supplies (e.g., Hewlett-Packard's).[2][3]

Apcupsd
Developer(s)Adam Kropelin
Initial releaseApril 7, 2005 (2005-04-07)
Stable release3.14.14 (May 31, 2016 (2016-05-31)) [±]
Written inC++
LicenseGPL
Websiteapcupsd.org

Apcupsd is the free software equivalent of the APC's proprietary software called Powerchute. As of version 3.14.0, Apcupsd has support for the PowerChute Network Shutdown function as well as many other features.[4]

Apcupsd runs in daemon mode so to keep a live connection with the UPS. Depending on the settings and type of connection, Apcupsd either polls the UPS to learn about its current state, or receives messages from the UPS itself, e.g. via SNMP traps. Possible types of connections to the UPS are USB, RS232 or Ethernet.[2] Apcupsd can communicate with other instances of Apcupsd on other computers and maintain a client-server relationship with them. This way it is possible to power multiple computers with one UPS, even though only one of them is connected to the data port of the UPS.

See also

References
  1. Release Notes for Apcupsd 3.14.x,
  2. Monitoring Your UPS With apcupsd, Riccardo Facchetti, Linux Journal, December 1, 2000 (date in print edition: November 2000.) Accessed on line November 21, 2007.
  3. §7.10, Nagios: System And Network Monitoring, Wolfgang Barth, No Starch Press, 2006, ISBN 1-59327-070-4.
  4. Apcupsd home page


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