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How to use rdate time synchronization in linux? aiming at this problem, this article introduces the corresponding analysis and solution in detail, hoping to help more partners who want to solve this problem to find a more simple and feasible method.

Linux system time synchronization ntpdate error:

$ntpdate-d serverIP

1 Aug 09:23:22 ntpdate [5268]: ntpdate 4.2.6p5@1.2349-o Fri Apr 13 12:52:28 UTC 2018 (1)

Looking for host serverIP and service ntp

Error resolving serverIP: Name or service not known (- 2)

1 Aug 09:23:22 ntpdate [5268]: Can't find host serverIP: Name or service not known (- 2)

1 Aug 09:23:22 ntpdate [5268]: no servers can be used, exiting

Always use ntpdate time synchronization to report an error:

$/ usr/sbin/ntpdate ntp1.aliyun.com

1 Aug 09:41:59 ntpdate [7401]: no server suitable for synchronization found

It says on the Internet that the udp123 port is closed. Because I use a high-defense computer room server, many high-defense computer rooms block the UDP port, which causes the time synchronization problem.

Then go to Baidu to find out that there is really another way to use rdate. Try to install it.

Centos7 system installation method:

Yum install rdate

Execute: / usr/bin/rdate-s time.nist.gov after installation is complete

Check whether the time date is the same as the time of the phone (find your own way to check)

Add * / 10 * / usr/bin/rdate-s time.nist.gov to the crontab planning task, edit: crontab-e join and wq save and exit.

This is the answer to the question about how to use rdate time synchronization in linux. I hope the above content can be of some help to you. If you still have a lot of doubts to be solved, you can follow the industry information channel to learn more about it.

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