Troubleshooting Linux Server Ntpdate sync time error The NTP socket is in use, exiting

error message:

Error reason analysis:

Because the XNTPD is already bound to the Socket. When you run Ntpdate, it broadcasts first, and then listens on port 123.

If XNTPD is running and a process is already listening on that port, it will cause ntpdate to fail to run on it. Run the following command to find the PID of the XNTPD

Solution:

Appears: pts/0 00:00:00 grep xntpd indicates that no PID was found.
Using lsof–i:123

Output:

-bash:lsof:command not found

Description not installed Lsof

Execute command:

The following message appears to indicate that the installation was successful

Execute command:

Lsof-i:123

、

Kill-9 1324

Clear (Kill) the process, and then try to synchronize with the NTP server again

Ntpdate ntp1.aliyun.com

The following screen shows that synchronization time is successful!

　

Troubleshooting Linux Server Ntpdate sync time error The NTP socket is in use, exiting