[ntp:questions] How do I prevent sudden system time jumps.

Hal Murray hal-usenet at ip-64-139-1-69.sjc.megapath.net
Wed Jul 13 21:59:25 UTC 2011


>The following is an example from ntpd.log
>
>14 Apr 07:22:25 ntpd[1048]: synchronized to 10.0.0.5, stratum 1
>14 Apr 07:22:25 ntpd[1048]: time reset +0.231004 s
>14 Apr 07:23:35 ntpd[1048]: synchronized to 10.0.0.5, stratum 1
>14 Apr 07:39:33 ntpd[1048]: time reset +0.318457 s
>14 Apr 07:39:33 ntpd[1048]: kernel time sync disabled 0041

Is the clock at 10.0.0.5 good?

If all your adjustments are in the same direction, then your system
is probably broken.  If they alternate signs, then something in your
network or remote clocks is probably confused.

One thing to try.  What's in your drift file?  (It's probably in
/var/lib/ntp/drift or /etc/ntp/drift ...)  If that it a big number
like 500, try stopping ntpd, deleting that file, and restarting ntpd.

-- 
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