[ntp:questions] Does NTP cause an abrupt/sudden change in an orphan's system time?

David Woolley david at ex.djwhome.demon.invalid
Thu Aug 9 20:04:13 UTC 2012


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> unruh wrote:> David Woolley wrote:
>>> Steve Kostecke wrote:
>>>> What will happen when ntpd is started has been discussed
>>>>  elsewhere in this thread.
>>> If you want to clear a very large error by a pure slew,
>>>  the best way is not to start ntpd until you have cleared
>>>  the error, but, instead, to use whatever utility your OS
>>>  uses to access the system calls that ntpd uses, and set
>>>  a high slew rate, which you only clear when you are
>>>  approaching zero offset.
>> But why should he have to do this by hand?  Why should ntpd
>>  not do it for him?  Taking care of such housekeeping is
>>  what computers are good for.
> 
> It will, that is what the step is, if panic is disabled.
> 
> I am unclear though if the OP didn't want to step the time
>   when starting ntp, apparently long after system is booted,
>    {If so I doubt they would want to manually step either};
>  or just not wanting a step when internet connectivity reoccurs,
>   while the system and ntp had been already running?
> 

I was describing how to do a rapid slew manually, not how to do a step.



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