HeartBeat

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See http://dictionary.reference.com/browse/heartbeat

A HeartBeat in the computer world is a regular (every second,minute,hour) signal or pinging of a system or service to ensure it is still running.

For example you could set up a CronJob of 

wget http:<yourhomepage>

to run every 10 minutes and then send you an SMS you if your ISP was down !

See http://dictionary.reference.com/browse/heartbeat

HeartBeat (last edited 2008-08-06 16:27:20 by localhost)