[ntp:questions] Reachable and rejected

Steve Kostecke kostecke at ntp.org
Wed Sep 10 23:20:26 UTC 2008

On 2008-09-10, Dave Close <dave at compata.com> wrote:

> I hope I didn't miss an easy answer while reading the FAQ, list
> archive, and other documents online. I have some systems which are
> separated from their time servers by a NAT proxy. Those which are not
> separated seem to work just fine but those beyond the proxy don't keep
> time correctly. For example, on one of them I got this output:

The system shown below has no problem polling the remote time servers.
So you can rule out NAT as a problem.

> # ntpq -p
>  remote    refid     st t when poll reach delay  offset jitter
> ==============================================================
> server-1  2 u   52   64  377  2.022 -41630. 19.566
> server-2  2 u    6   64  377  2.121 -41601. 19.996

This ntpd was 41.6 seconds away from the those servers at the time this
billboard was taken. That is a very large offset.

I would check in the syslog and see if ntpd is having to step the clock.
If that is the case you need to fix whatever is causing this massive

Steve Kostecke <kostecke at ntp.org>
NTP Public Services Project - http://support.ntp.org/

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