Comment 2 for bug 1804015

> Since in 2.5+ all the DNS traffic goes through the rack controller, can you please provide an example of what your expectation would be for 2.5+ ?
>
> Is this expected to be done both for the rack & the region controller ?

Do you have an architectural diagram to cover the new DNS traffic? Are both region and rack controller going to run DNS servers? Or just moving DNS on region previously to rack?

I suppose the latter, but in any case a knob of "recursion no;" should go to this template:
https://git.launchpad.net/maas/tree/src/provisioningserver/templates/dns/named.conf.options.inside.maas.template