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Solaris™ Operating Environment Boot Camp by Dominic Butler, David Rhodes

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Network Time Protocol

The Network Time Protocol (NTP) was designed to ensure that time could be accurately set and maintained over a wide area network, such as the Internet. It achieves this with much better accuracy than utilities such as rdate, by providing clients with a way to synchronize their clocks against a reference time signal. This may be either a piece of hardware, such as a radio clock, or perhaps another server that has access to an accurate signal.

NTP can also be used to regulate the systems on a network that doesn't have access to a reference signal. In this case, we are trying to make sure that the times on each system are correct relative to each other; we are not really concerned with how accurate the times are to a reference ...

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