- Don’t use CRON fools!
- Use Red Hat’s tool X-version of system-config-date and use it to set up ntp (GOSH, that sucks!)
- ntpdate for laptops and workstations that reboot often, because you should only use ntpdate on boot as big time shifts during a running system can cause havoc
- Otherwise run ntpd for machines that stay on. Caveat: If time is out by more than 1000 seconds, it won’t update. First ntpdate then restart ntpd. Urgh.
- DST is a pain.
- Win32 time sync net time /setsntp:yourlocalRHserver (on the Domain Controller)