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Some of the problems about centos7.7 NTP time server

Time:11-09

Recently in a NTP server
Know that as long as the configuration (NTP). The conf file, the following are some of my questions
My understanding is that as long as the default superior time server for domestic stability time server line.
Why there are so a tutorial online
Others said to restrict the default nomodify notrap nopeer noquery commented out, or not as a time server, the meaning of this front illustrates, isn't it: Permit time synchronization with our time source, but do not to Permit the source to query or modify the service on this system, (with the time synchronization server is allowed, but not allowed to query or modify the service on this system)
Others said to add restrict 192.168.1.0 mask 255.255.255.0 nomodify notrap, this is understandable, for the request to the unit time synchronization IP restrictions, but I don't add any IP is equal to do
Others said to add server 127.127.1.0

Fudge 127.127.1.0 stratum 10

This and I don't understand, this isn't the meaning of time when the machine is superior sources cannot be used to find the machine machine time synchronization, from accurate, this is not to need to add, because from the time of machine is not accurate, that how to give others also provide,

Anyway, a total of these changes is involved,

So my idea is that as long as NTPD server startup, he is not the NTP server, and the NTP client yet

Hope to guide the great god, confused for a few days

CodePudding user response:

Never make the NTP service, with a client, under test several parameters have no effect not line?

CodePudding user response:

Nomodify notrap nopeer noquery is four parameters
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