NTP

NTP is the Network Time Protocol, which is a protocol used to synchronize the time of each computer in the network.
In the world of computers, time is very important. For example, for scientific research activities such as rocket launch, the requirements for the unity and accuracy of time are very high. Whether it is according to the time of computer A or the time of computer B time? NTP is used to solve this problem. NTP (Network Time Protocol, Network Time Protocol) is a protocol used to synchronize the time of each computer in the network. Its purpose is to synchronize the computer's clock to UTC, and its accuracy can reach 0.1ms in the local area network, and its accuracy can reach 1-50ms in most places on the Internet.
It enables a computer to synchronize time with its server or clock source (such as quartz clock, GPS, etc.), it can provide high-precision time correction, and it can use encrypted confirmation to prevent malicious protocol attacks.