Network UPS Tools

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Network UPS Tools (NUT)
Developer(s)Arnaud Quette
Arjen de Korte
Charles Lepple
Initial releaseMarch 8, 1998 (1998-03-08)
Stable release
2.7.4 / March 9, 2016; 4 years ago (2016-03-09)
Repository Edit this at Wikidata
Written inC
Operating systemCross-platform

Network UPS Tools (NUT) is a suite of software component designed to monitor power devices, such as uninterruptible power supplies, power distribution units, solar controllers and servers power supply units. Many brands and models are supported and exposed via a network protocol and standardized interface.


Pavel Korensky's original apcd provided the inspiration for pursuing the APC Smart-UPS protocol in 1996.[1] This is the same software that Apcupsd derived from, according to the Debian maintainer of the latter.[2]

Russell Kroll, the original NUT author and coordinator, released the initial package, named smartupstools, in 1998. The design already provided for two daemons, upsd (which serves data) and upsmon (which protects systems), a set of drivers and examples, a number of CGI modules and client integration, and a set of client CLI tools (upsc, upsrw and upscmd), for interfacing the system with a specific UPS of a given model.[3]

Arnaud Quette, the current project leader since 2004, has set up a team of programmers and a project infrastructure and opened NUT to a wider "power broker" approach.[citation needed]

See also[edit]


  1. ^ Russell Kroll (25 November 2004). "Network UPS Tools: Acknowledgements". Retrieved 2010-06-09.
  2. ^ Nils Rennebarth (1 Jul 1997). "apcupsd, genpower, and PowerChute(TM) "Black" cable". Retrieved 2010-06-09. apcupsd is derived from apcd by Pavel Korensky
  3. ^ The README file for smartupstools-0.20.

External links[edit]