is this a valid zone file?

Jack Tavares j.tavares at
Sun Dec 21 12:21:38 UTC 2008

as specified, wouldn't this zone then be non-authoritative
Jack Tavares
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From: bind-users-bounces at [bind-users-bounces at] On Behalf Of Matus UHLAR - fantomas [uhlar at]
Sent: Sunday, December 21, 2008 2:13 PM
To: bind-users at
Subject: Re: is this a valid zone file?

On 21.12.08 03:54, Jack Tavares wrote:
> Looking at rfc2317
>    @       IN      SOA (...)
>    ;...
>    ;  <<0-127>> /25
>    0/25            NS      ns.A.domain.
>    0/25            NS

> That has no NS server defined for the zone, just the ranges of the zone.
> Is that valid?

it is, but may cause problems. NS records for the zone itself should be

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