[ntp:questions] Is there a conflict between ntpdate and ntpd?

Steve Kostecke kostecke at ntp.isc.org
Sun Dec 24 16:27:38 UTC 2006


On 2006-12-24, ed <seahalo at gmail.com> wrote:

> My host was running ntpd in the background, and I also schedule ntpdate
> in the crontab one minute per time.

Use one or the other. Don't use them both at the same time.

> I am a little worried the adjustment of the ntpdate in every minute
> will affect ntpd working ?

Yes, it will.

> From the document, I don't find the any caution to this configuration.

ntpdate is primarily intended to be used for the initial boot-time clock
setting.

> But actually, the sync in the ntpd with ntp server was not working
> very well, the synchroniztion was often lost.

ntpd will never be able to synchronize if the system clock is
continually being "kicked out from underneath it".

-- 
Steve Kostecke <kostecke at ntp.isc.org>
NTP Public Services Project - http://ntp.isc.org/




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