Quoting mcclnx mcc <mcclnx at yahoo.com.tw>: > 1. How to check my server actually use NTP time or > local machine time? Use "ntpq -p" (it's in /usr/sbin). It'll give you a list of configured time sources. > 2. where is NTP log file? Logs through syslog to /var/log/messages. Just "grep ntpd /var/log/messages".