Configuration advice for a post-8020 world

[Phil Mayers]

On 12/02/2017 11:09, Woodworth, John R wrote:

> SAMPLE ZONES:
> 101{redacted}.com.              (REAL ZONE FILE)
> jwjw.sales.101{redacted}.com.   (REAL ZONE FILE)

You are missing the glue NS records in the parent zone (just verified by 
local test of the before/after case). You need:

jwjw.sales.101{red}.com. IN NS ...

...in the "101{red}.com" zonefile. Yes, even if the same server has the 
child zone.