NTPD and SecureLevel
David Magda
dmagda at ee.ryerson.ca
Thu Jun 17 00:39:16 GMT 2004
On Jun 16, 2004, at 20:03, Harlan Stenn wrote:
>> ntpd(8) doesn't actually change the time by making it 'jump' to the
>> correct time; it slows down or speeds up the rate at which the timer
>> runs at.
>
> Sometimes ntpd will step (jump) the time.
Yes, I've noticed that as well (it appears in my logs). AFAICT there's
a period of time in which NTPd needs to 'stabilize' and then it slews
the time after that point. It's been a while since I've looked into the
NTP algorithm in detail though.
You may want to ask about it in the Usenet group
comp.protocols.time.ntp for details.
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