[110269] in North American Network Operators' Group

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RE: Leap second tonight

daemon@ATHENA.MIT.EDU (Matthew Huff)
Wed Dec 31 20:36:07 2008

From: Matthew Huff <mhuff@ox.com>
To: Kevin Day <toasty@dragondata.com>, NANOG list <nanog@nanog.org>
Date: Wed, 31 Dec 2008 20:35:49 -0500
In-Reply-To: <E3F66783-DC2C-4C25-B2B2-DF7F576D9A3B@dragondata.com>
Errors-To: nanog-bounces@nanog.org

It looks like clepsydra hasn't been updated:

     address         ref clock     st  when  poll reach  delay  offset    d=
isp
-~192.5.41.40      .USNO.            1   194  1024  377    41.1    5.19    =
38.2
-~130.207.244.240  .GPS.             1    68  1024  377    23.1   11.09    =
 1.3
 ~127.127.7.1      127.127.7.1       7    53    64  377     0.0    0.00    =
 0.0
+~198.60.22.240    .GPS.             1   436  1024  377    65.7    7.09    =
32.5
 ~204.123.2.5      .GPS.             1   182  1024  377    80.4  1011.4    =
24.9
+~67.128.71.76     .CDMA.            1   178  1024  377    16.8   10.85    =
79.2
+~18.26.4.105      .CDMA.            1   562  1024  377     8.4    7.90   2=
35.8
-~209.81.9.7       .GPS.             1   170  1024  177    79.9   16.96   1=
70.8
*~209.51.161.238   .CDMA.            1  1019  1024  377     3.9   10.13    =
 2.5
-~204.152.184.72   .GPS.             1   697  1024  377    75.0    1.81    =
 3.2
+~18.145.0.30      .PSC.             1  1737  1024  376    10.0    8.52   2=
97.1


Quick, someone call DEC.

Seriously, clepsydra is one of the older ntp servers out there, and hasn't =
dealt with the leap second correctly.


-----Original Message-----
From: Kevin Day [mailto:toasty@dragondata.com]=20
Sent: Wednesday, December 31, 2008 5:42 PM
To: NANOG list
Subject: Leap second tonight


Just a reminder that there's a leap second tonight.

Last time I watched for what happened on 01/01/2006, there was a =20
little bit of chaos: http://markmail.org/message/cpoj3jw5onzhhjkr?q=3D%22ke=
vin+day%22+leap+second+reminder+nanog&page=3D1&refer=3Dcnkxb3iv7sls5axu

I've been told that some of the causes of these problems are fixed on =20
any reasonably recent ntp distribution, but just in case, you might =20
wanna keep an eye out if you're seeing any weirdness. The worst damage =20
I'd heard from anyone after that event was their clock being =20
significantly off for several hours.

-- Kevin




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