I didn't find any ntpd log file in /var/log. I am wondering where can I find those log files, thanks!
This may tell you if/where ntp activity is being logged:
grep log /etc/ntp.conf
You can also try:
ps auxww | grep '[n]tp'
NTP doesn't normally generate many log messages nor have its own log file. Log messages on my system are found in
Statistics are found in the statistics dir (
/var/log/ntpstats on my system). Presence of statistics files are controlled by the filegen options in your ntp.conf file.
You should see them in /var/log/messages or wherever your syslog messages are going.