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From: Federico Galvez-Durand Besnard <Federico.Besnard@bluewin.ch>
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To: Harlan Stenn <Harlan.Stenn@pfcs.com>
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cc: freebsd-stable@freebsd.org
Subject: Re: clock running fast
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Harlan Stenn wrote:

>>Remove /var/db/ntpd.drift before you reboot or restart your ntpd.
>>    
>>
>
>Why would you want to do this?
>
>And in config files, iburst is your friend.
>
>See http://ntp.isc.org/Support/ for more informaion.
>
>H
>
>  
>
True only when NTPD is running in stable steady state.
In this case, NTPD is not performing... so drift file can be recording 
very messy values.
Better get it from scratch than having a very bad initial condition.