[158106] in North American Network Operators' Group
Re: NTP Issues Today
daemon@ATHENA.MIT.EDU (Jimmy Hess)
Tue Nov 20 19:50:11 2012
In-Reply-To: <CAMeggd4cDQwhxQE_JbvpNR-PKKe9LXqA+KzJ97anHFonjwZhdQ@mail.gmail.com>
Date: Tue, 20 Nov 2012 18:49:47 -0600
From: Jimmy Hess <mysidia@gmail.com>
To: Van Wolfe <vanwolfe@gmail.com>
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On 11/19/12, Van Wolfe <vanwolfe@gmail.com> wrote:
> Did anyone else experience issues with NTP today? We had our server
> times update to the year 2000 at around 3:30 MT, then revert back to 2012.
Are you sure that you are actually using NTP to set your clock?
For you to sync with 2000, you should have had multiple confused
peers from multiple time sources; possibly a false radio signal....
NTP by default has a panic threshold of 1000 seconds.
This _should_ have caused NTP to execute a panic shutdown,
instead of setting the clock back 30 million seconds.
> Thanks,
> Van
--
-JH
