Serial number question..

[Ricardo Stella]

Suggestion I learned ages ago...

Set the serial number to match the date the change is made such as
YYYYMMDDvv (Year, month, date, version).  For example: 2020121701

Of course, if you do more than 99 changes in a single day, you probably
have other problems..


On Thu, Dec 17, 2020 at 2:02 PM Reindl Harald <h.reindl at thelounge.net>
wrote:

>
>
> Am 17.12.20 um 19:56 schrieb Bruce Johnson:
> > Someone updated out name server and messed up the serial number on the
> primary; as a result our secondaries are not updating properly.
> >
> > Primary:
> >
> > bruces-Mac-Mini:~ johnson$ dig @elixir.pharmacy.arizona.edu -t SOA
> +noall +answer pharmacy.arizona.edu
> > pharmacy.arizona.edu. 86404   IN      SOA
> elixir.pharmacy.arizona.edu. wunz.elixir.pharmacy.arizona.edu. 1297117089
> 3600 120 1209600 86400
> >
> >
> > Secondaries:
> >
> > bruces-Mac-Mini:~ johnson$ dig @dhbns1.pharmacy.arizona.edu -t SOA
> +noall +answer pharmacy.arizona.edu
> > pharmacy.arizona.edu. 86404   IN      SOA
> elixir.pharmacy.arizona.edu. wunz.elixir.pharmacy.arizona.edu. 1762233707
> 3600 120 1209600 86400
> > bruces-Mac-Mini:~ johnson$ dig @ns-remote.arizona.edu -t SOA +noall
> +answer pharmacy.arizona.edu
> > pharmacy.arizona.edu. 86404   IN      SOA
> elixir.pharmacy.arizona.edu. wunz.elixir.pharmacy.arizona.edu. 1762233707
> 3600 120 1209600 86400
> >
> > Is the fix here just setting the serial number on the primary to
> 1762233708 ?
> >
> > The various things online I’ve found are all based on “you accidentally
> set the primary more than 2^32 ahead” so you have to do a bunch of modulo
> arithmetic...
>
> just set it *higher* on the master and you are done
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