About Linux

The NTP or Network Time Protocol is an Internet protocol that is widely used for the transfer of the time across different network. It is used to synchronize the network time to provide the clients an accurate time source. Here is the overview of the NTP servers that is used to provide an accurate source of time to network clients by utilizing NTP.

The NTP protocol is one of the oldest protocols used today with a history of 25 years behind it. Originally the protocol is designed to synchronize computers and process accurate time across the internet. First it was developed to use in the Linux operating system but recently it is also allowed Microsoft Windows operating system to use it. Many Linux, UNIX and free based BSD distributions has installed NTP by default. For this most NTP servers use the Linux operating system because of its specialized kernel timing algorithms.

NTP is a client server based protocol which provides clients three different products; clock offset, network round trip delay and reference clock dispersion. The main aim of the clock offset is to specify the difference between the local system time and an external reference clock. The time latencies measured during the transfer of packets around the network is specified by the round trip delay. The maximum error associated with the timing information is specified by the time dispersion which is received from the external reference clock.

At the top of the hierarchical structure of the NTP protocol there is stratum 1 time server which is the primary reference server followed by which there is secondary reference servers and clients.

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