[dns-operations] Recommended zone serial number format for over 100 changes / day

Mark Andrews marka at isc.org
Wed Mar 30 21:16:54 UTC 2016


In message <CDC750BA-E563-4DD4-9B5A-5C3686BF6BAA at consultant.com>, James R Cutler writes:
> > On Mar 30, 2016, at 2:56 PM, Jonathan Tuliani
> <Jonathan.Tuliani at microsoft.com> wrote:
> >
> > Hi DNS Gurus,
> >
> > RFC1912 recommends the following SOA serial number format: YYYYMMDDnn
> >
> > However, this does not support more than 100 updates per day (whilst
> this sounds like a lot, the fluidity of the Cloud means there are some
> applications where large numbers of changes are commonplace).
> >
> > Is there a recommended serial format that supports large numbers of
> changes?
> >
> > Thanks in advance,
> >
> > Jonathan Tuliani
> > _______________________________________________
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>
>
> Use YYYYMMDDnnn

That DOES NOT WORK.  You get values that are large than the
largest possible serial.

e.g.
	20160331999 > 4294967295

Mark


> James R. Cutler
> James.cutler at consultant.com
> PGP keys at http://pgp.mit.edu
-- 
Mark Andrews, ISC
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