LANOff Slave This application monitors network connections and optionally initiates computer shutdown
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remote monitor network monitor network network shutdown remote computer shut down server network computer shutdown

LANOff Slave Description

It can backup, restore and shut down computers when the operation has completed.LANOff monitors network connections and optionally initiates computer shutdown if the network connection to specified computers is lost. LANOff supports all the normal shut down modes. LanOff is part of the JSutils group of software utilities which have a theme of energy conservation. To find more energy and money saving ideas check out Practical Home Energy Saving.The program operates by interrogating each remote computer via a small slave program once a second. Up to four remote computers can be monitored or controlled with shutdown being initiated when connection to all computers is lost. Uses of LANOff include monitoring up to four computers connected to a server shutting down the server when it is no longer needed or shutting down up to four computers connected to a server when the server shuts down. It can be started via the Windows Task Scheduler, on start up or manually. LANOff works by the the main program interrogating each slave twice a second via two ports using the UDP protocol, sending a small amount of data each time and checking it is returned correctly. This gets around the problem that a crashed computer may have a valid network connection but not be capable of communication. It also gives some protection against network corruption and interference. LANOff indicates whether the network and specific connections are good by colouring the display; green is a good connection and orange is a bad connection. There is a timeout of up to 3 seconds before a connection is marked as bad. it can take up to 2 seconds before a connection is marked as good. The main program display also shows the first letter of the shut down type for each connected slave (B - Standby, H - Hibernate, M - Monitor, P - Power Off, R - Reboot, S - Shutdown). When the program indicates Network OK this only means there is a connection to the first network termination (usually a switch or router). Both the main and slave programs consume very little system resources but they do run with high priority. Shutdown, Power Off and Reboot have been configured to force all running applications to close. The program requires a registration code to run - this can be obtained free for personal non commercial use from the Download page. Registration codes from previous versions are compatible with version 4.0.

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