The NTP socket is in use, exiting, Linux
Ntpdate [21718]: Output, NTP socket is in use
# ntpdate pool.ntp.org 28 Feb 02:04:45 ntpdate[15432]: the NTP socket is in use, exiting
This can happen because the ntp service is running. Depends on your Linux version if you want to stop the NTP service and restart Ntpdate. Before starting the NTP service again.
$ sudo service ntp stop Stopping NTP server: ntpd. $ sudo ntpdate pool.ntp.org 28 Feb 02:06:14 ntpdate[15593]: adjust time server 77.37.134.150 offset -0.220254 sec $ sudo service ntp start Starting NTP server: ntpd.
Or use the following command, which will use a different port:
# ntpdate -u pool.ntp.org