[ntp:questions] Is this a bug? Different outputs from ntpdc -ckerninfo

Dave Hart hart at ntp.org
Thu Feb 9 14:32:45 UTC 2012

On Thu, Feb 9, 2012 at 14:09, David J Taylor
<david-taylor at blueyonder.co.uk.invalid> wrote:
> "Dave Hart" <davehart at gmail.com> wrote in message
> news:CAMbSiYDTTPDsE_jc+5wROq01sydsGOwjfJAhJ7dh_ggYdESa6Q at mail.gmail.com...
>> Still the big picture is the same.  ntpdc kerninfo is particularly
>> fragile and should only be used between very similar systems.  ntpq
>> kerninfo is robust.  There is no reasonable way to fix this without
>> seriously overhauling ntpdc and ntpd, meaning the fix would only work
>> with new ntpdc against new ntpd, and given that ntpq gets it right, it
>> doesn't make sense to re-engineer the depracated ntpdc/ntpd mode 7
>> code.
> Thanks for that, Dave, and I appreciate the time taken to answer.  When you
> write:  "All are fixed by new ntpd and ntpq.", what minimum release of ntp
> counts as "new"?  I hope that my ntpq 4.2.7p241 is "new", but what is the
> minimum version of ntpd it will converse correctly with?

I don't know offhand, and I'm in bed.  But I will tell you how to find out:


Scan for "kerninfo" to find when ntpq's kerninfo was added or last fixed.

Dave Hart

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