On Wed, Oct 04, 2017 at 11:43:18AM +0100, Tony Finch wrote:
> rams <brames...@gmail.com> wrote:
> >
> > When we change any resource record like A or AAAA, then SOA serial number
> > gets incremented. But If we update only SOA record ,Is serial number of SOA
> > remain same as before or serial number of SOA will increment?.
>
> It needs to increment, yes, because that's how the secondaries know they
> need to update their copies of the zone.
>
> > Do we have any RFC for this?
>
> I don't know if this particular case is mentioned explicitly, but you can
> look at RFC 1995 (IXFR) and RFC 5936 (AXFR).
Also please read RFC 1982, specifically section 7 (The DNS SOA serial
number) on what to keep in mind when updating the serial number.
Mukund
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