ntpd / time synchronization
Chuck Swiger
cswiger at mac.com
Mon Jul 27 22:51:15 UTC 2009
On Jul 27, 2009, at 3:44 PM, Zbigniew Szalbot wrote:
> and here's the details of /etc/ntp.conf file:
>
> server 0.pl.pool.ntp.org
> server 1.pl.pool.ntp.org
> server 2.pl.pool.ntp.org
> server 3.pl.pool.ntp.org
> driftfile /var/db/ntp.drift
> restrict default nopeer nomodify
>
> I used to have server 0.europe.pool.ntp.org in the ntp.conf file but
> today changed all entries to *.pl.pool.*
>
> At the moment my clock is about 3 minutes behind time. It has been
> running for a year and I do not have ntpdate enabled so I guess
> subsequent reboots did not correct the drifting problem.
>
> Is there anything obvious I am missing here? Any advice would be
> greatly appreciated!
You can't readily combine a restrict statement with using random
timeservers from the NTP pool; you would need to list specific servers
and add blank restrict statements for each server you trust. What
you've configured is likely querying the 4 servers listed for time,
but not trusting their responses so your clock never find a server
which it is willing to sync to.
Running "ntpq -p -c rv" would be informative....
Regards,
--
-Chuck
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