That was my first thought, but stopping the secondary would affect all
of the published zones.
If retransfer ignores serial number, then using "rndc retransfer" would
affect only the specifically-named zone in the specifically-named view.
Resolution of the other zones, in all of the other views, would be
uninterrupted.
--
Do things because you should, not just because you can.
John Thurston 907-465-8591
[email protected]
Department of Administration
State of Alaska
On 2/17/2023 10:23 AM, Ondřej Surý wrote:
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Why so complicated? Stop the secondary, purge the zone files and
journal, and start the secondary. The zones will get retransfered as
there’s no state now.
--
Ondřej Surý — ISC (He/Him)
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not feel obligated to reply outside your normal working hours.
On 17. 2. 2023, at 20:18, John Thurston <[email protected]> wrote:
Assumptions: A primary and several secondaries, with the secondaries
using XFR to stay up to date.
Scenario: Make a change in the serial number algorithm which will
result in newer zone-data being published on an "earlier" serial number.
The 'correct' method is to increase the serial number (by steps not
exceeding 0x7FFFFFFF) until it rolls back around to the desired
number. These increments are to happen no more frequently than the
refresh interval specified in the SOA record. This 'correct' method
relies on nothing more than the communication standards defined in RFC.
But if we add the assumption: All authorities are running ISC BIND
software, and all are under central management.
can the whole process be reduced to publishing the new serial number
on the primary, and using an "rndc retransfer" on each secondary?
The man-file says "retransfer . . . This command retransfers the
given secondary zone from the primary server."
It doesn't say serial number is considered, nor does it does it say
that it is ignored. I'm thinking it makes sense that it ignores the
serial number, but I can't think of a good way to test this.
--
--
Do things because you should, not just because you can.
John Thurston 907-465-8591
[email protected]
Department of Administration
State of Alaska
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