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Network Time Protocol
| The TCP/IP model (RFC 1122) |
|---|
| Application Layer |
| Transport Layer |
| Internet Layer |
| Link Layer |
The Network Time Protocol (NTP) is a protocol for distributing the Coordinated Universal Time (UTC) by synchronizing the clocks of computer systems over IP networks.
NTP is one of the oldest Internet Protocols still in use (since before 1985) and uses UDP port 123.
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