Network UPS Tools is a collection of programs which provide a common interface for monitoring and administering Uninterruptible Power Supply (UPS), Power Distribution Unit (PDU), and Solar Controller Device (SCD) hardware. It uses a layered approach to connect all of the parts. Drivers are provided for a wide assortment of equipment. They understand the specific language of each device and map it back to a compatibility layer. This means both an expensive high end UPS, a simple "power strip" PDU, or any other power device can be handled transparently with a uniform management interface. This information is cached by the network server upsd, which then answers queries from the clients. upsd contains a number of access control features to limit the abilities of the clients. Only authorized hosts may monitor or control your hardware if you wish. Since the notion of monitoring over the network is built into the software, you can hang many systems off one large UPS, and they will all shut down together. You can also use NUT to power on, off or cycle your data center nodes, individually or globally through PDU outlets.
WWW: http://www.networkupstools.org/
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