[outages] Fwd: NTP Issues Today

Josh Luthman josh at imaginenetworksllc.com
Mon Nov 19 22:38:17 EST 2012


Ntpd crashed for me early afternoon.  Log said it wanted to go back 12
years.

Josh Luthman
Office: 937-552-2340
Direct: 937-552-2343
1100 Wayne St
Suite 1337
Troy, OH 45373
On Nov 19, 2012 6:05 PM, "Jeremy Chadwick" <jdc at koitsu.org> wrote:

> Quite scary, for the following reason:
>
> $ ntpq -c peers tick.usno.navy.mil
>      remote           refid      st t when poll reach   delay   offset
>  jitter
>
> ==============================================================================
> *REFCLK(45,0)    .IRIG.           0 l    9   16  377    0.000   -0.001
> 0.001
> +REFCLK(45,1)    .IRIG.           0 l    8   16  377    0.000   -0.006
> 0.001
> +10.1.4.40       .IRIG.           1 u   22   64  377    0.146    0.024
> 0.013
> -10.1.4.51       0.0.0.0          2 u   48   64  377    1.516   -0.228
> 0.301
>
> $ ntpq -c peers tock.usno.navy.mil
>      remote           refid      st t when poll reach   delay   offset
>  jitter
>
> ==============================================================================
> *REFCLK(45,0)    .IRIG.           0 l    3   16  377    0.000   -0.001
> 0.000
> +REFCLK(45,1)    .IRIG.           0 l    2   16  377    0.000   -0.007
> 0.000
> +10.1.4.40       .IRIG.           1 u    6   64  377    0.116    0.029
> 0.017
> -10.1.4.51       0.0.0.0          2 u   65   64  377    1.467    0.080
> 0.182
>
> Note that both of their servers prefer to sync off of local hardware
> time devices (specifically dedicated hardware with IRIG/AFNOR TCRs in
> them).
>
> I'd love if one of their admins could explain what happened, for
> educational benefit at bare minimum.
>
> --
> | Jeremy Chadwick                                   jdc at koitsu.org |
> | UNIX Systems Administrator                http://jdc.koitsu.org/ |
> | Mountain View, CA, US                                            |
> | Making life hard for others since 1977.             PGP 4BD6C0CB |
>
> On Mon, Nov 19, 2012 at 03:49:56PM -0800, George Herbert wrote:
> > Apparently the US Navy was partying like it's 1999 earlier today...
> >
> > -george
> >
> >
> > ---------- Forwarded message ----------
> > From: Clay Haynes <chaynes at centracomm.net>
> > Date: Mon, Nov 19, 2012 at 3:37 PM
> > Subject: Re: NTP Issues Today
> > To: "surfer at mauigateway.com" <surfer at mauigateway.com>,
> > "nanog at nanog.org" <nanog at nanog.org>
> >
> >
> > Scott,
> > I can confirm this had happened on one of my test servers - it was
> > pointing to tick.usno.navy.mil and tock.usno.navy.mil at the time.
> >
> >
> > - Clay
> >
> >
> >
> > On 11/19/12 6:32 PM, "Scott Weeks" <surfer at mauigateway.com> wrote:
> >
> > >
> > >
> > >--- vanwolfe at gmail.com wrote:
> > >From: Van Wolfe <vanwolfe at gmail.com>
> > >
> > >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.
> > >-----------------------------------------
> > >
> > >
> > >You need to provide more information.  For example, what NTP
> > >source are you using?
> > >
> > >scott
> > >
> >
> >
> >
> >
> > --
> > -george william herbert
> > george.herbert at gmail.com
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