On 2016-07-29 08:21, Matus UHLAR - fantomas wrote:
On 28.07.16 12:13, Paul A wrote:
Now what is everyone using to make sure the zones in named.conf are still
pointing to your NS servers? I have a lot of stale DNS zones I want to
remove.

separate authoritative and recursive servers.
bill for having zones in DNS.
or simply wait till customers complain and tell them they should tell you
when tthey migrated their zones off.

On 30.07.16 12:36, Dave Warren wrote:
At what point will a customer complain when they switch authoritative servers if the old ones are still online,

I haven't said that the non-auth servers have to keep old zones

whether serving current data, out of date data

this is what TTL is for. the same behaviour applies to zones all other
servers.

or the zone eventually expires?

that can't happen on master servers

--
Matus UHLAR - fantomas, uh...@fantomas.sk ; http://www.fantomas.sk/
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