Removing an NS server

Matus UHLAR - fantomas uhlar at
Wed Aug 8 13:39:20 UTC 2018

On 07.08.18 20:46, King, Harold Clyde (Hal) wrote:
> I don't think I made my point. I need to pull/remove a DNS nameserver from
> my set of nameservers.
> My plan was to put the reference to it from our domain name provider.

Yes, to be more precise, you must pull the name out of all domains delegated
to the server.

> Then pull it from the list of NS records.

correct - in all zones that contain NS records pointing to the server.

> I am not changing my SOA record. 

you must increase the serial number in SOA, so all slaves will fetch new
versions without NS for proper server.

> Just the nameserver.  Did I make a mistake?  Did you mean pull the NS
> reord for that server, then pull it from the name provider.  I'll still
> have 4 servers running the SOA, and I don't plan to stop the old
> nameserver until well after a week of running.

you should keep the server running at leasr for "expire" seconds in those zones.
the expire is (or should be) usually a week or two.

Matus UHLAR - fantomas, uhlar at ;
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