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Re: [Ntp] Antw: Re: Finding leap-seconds.list

Harlan Stenn <stenn@nwtime.org> Tue, 13 November 2018 11:23 UTC

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To: Martin Burnicki <martin.burnicki@meinberg.de>, Hal Murray <hmurray@megapathdsl.net>
Cc: ntp@ietf.org, Warner Losh <imp@bsdimp.com>
References: <20181112204109.7383F40605C@ip-64-139-1-69.sjc.megapath.net> <7b868ffd-5202-98a4-1be0-91eb9f1f002b@nwtime.org> <464c165f-a795-e6ea-f338-df4843b7c049@meinberg.de>
From: Harlan Stenn <stenn@nwtime.org>
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Date: Tue, 13 Nov 2018 03:23:13 -0800
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Subject: Re: [Ntp] Antw: Re: Finding leap-seconds.list
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Thanks, Martin!

As per long-standing policy, we EOL'd 4.2.6 in December of 2014, for
good reason, when we released ntp-4.2.8.  4.2.8 fixed over 1100 bugs in
4.2.6.  We still offer support contracts for 4.2.6.

Just to document it:

 http://support.ntp.org/bin/view/Dev/ReleaseTimeline

Since the initial release of ntp-4.2.8 in December of 2014, we have had
12 patch releases of ntp-4.2.8.

H


On 11/13/18 12:27 AM, Martin Burnicki wrote:
> Harlan Stenn wrote:
>>
>> On 11/12/18 12:41 PM, Hal Murray wrote:
> [...]
>>> I'm not sure what happens if ntpd has a valid leap-seconds file after it 
>>> expires.
>>
>> If the file was valid but has expired, it's no longer valid.
> 
> Just for completeness please note:
> 
> Only starting with v4.2.8, ntpd ignores a leap second file that has
> expired, which is good behavior.
> 
> Up to v4.2.6 an expired file was anyway considered valid, and was accepted.
> 
> This could lead an ugly error if a valid leap second announcement was
> received from upstream time sources but was ignored just because an
> expired leap second file was available.
> 
> Martin
> 

-- 
Harlan Stenn <stenn@nwtime.org>
http://networktimefoundation.org - be a member!

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