[ntp:questions] Re: Leap second hangover?
David Malone
dwmalone at maths.tcd.ie
Sat Jul 1 14:57:56 UTC 2006
"David J Taylor" <david-taylor at blueyonder.co.not-this-bit.nor-this-part.uk> writes:
>On both problem PCs, at 01:00 a positive leap second is inserted. Arrgh!
Interesting stuff - after the last leapsecond there were stuff
public time servers advertising a pending leapsecond 12 hours later.
Evidently there were some still advertising it a whole 6 months
later!
>All my systems are using the server ntp2c.mcc.ac.uk, so I presume that is
>not is sending out the spurious message. How can I find out if a server
>is sending out a leap-second required message? I can only assume
>something in the UK pool of servers was incorrectly sending the
>leap-second message, and may still be.
You can see the leap bits by doing something like:
ntpq -c rv localhost
(replace localhost with the name of the host you want to query)
and look for the "leap=" value. It should be "00" at the moment.
I used this to produce the graph at:
http://www.maths.tcd.ie/~dwmalone/time/leap2005.html#ntpleapflag
It would be interesting to survey the pool servers and see which
are advertising a leap second.
David.
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