[ntp:questions] Re: NTP and Cron
brad at stop.mail-abuse.org
Wed Dec 1 00:02:08 UTC 2004
At 3:25 PM -0800 2004-11-30, Steven Hajducko wrote:
> If a system clock is running too slow, then it
> simply adjusts the time to be a little bit faster than real time? Adding
> .001 ( or whatever number ) to every second until you make up that extra
A properly running ntpd should never step the clock, no matter
how small the step. What it should do is cause the clock to run
faster or slower, and tries to always get closer to "correct" time.
If you do this often enough, you will find that you probably have
one clock speed that is ever so slightly too fast, and the next one
down that is ever so slightly too slow, and you end up switching back
and forth between them as needed to try to keep as close as possible
to "correct" time.
All this is explained in the documentation, although that can
sometimes be a little difficult to understand for people who are new
Brad Knowles, <brad at stop.mail-abuse.org>
"Those who would give up essential Liberty, to purchase a little
temporary Safety, deserve neither Liberty nor Safety."
-- Benjamin Franklin (1706-1790), reply of the Pennsylvania
Assembly to the Governor, November 11, 1755
SAGE member since 1995. See <http://www.sage.org/> for more info.
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