[dns-operations] Recommended zone serial number format for over 100 changes / day
muks at isc.org
Thu Mar 31 13:20:46 UTC 2016
On Wed, Mar 30, 2016 at 06:56:13PM +0000, Jonathan Tuliani wrote:
> 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
You can use any serial number format that fits in a 32-bit unsigned
integer. There're no restrictions except that care should be taken to
allow for serial number arithmetic to occur correctly when the serial
See RFC 1982 and particularly section 7 in that for how the serial value
should be updated. Overflow of the serial value would not result in
inconsistencies as long as the operator follows the guidelines there.
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