Ns records rfc

[S Carr]

On 6 March 2016 at 04:08, rams <bramesh80 at gmail.com> wrote:
> Is there any rfc that a tld zone should have atleast two ns records when we
> create the tld zone

RFC 1034 Section 4.1

A given zone will be available from several name servers to insure its
availability in spite of host or communication link failure.  By
administrative fiat, we require every zone to be available on at least
two servers, and many zones have more redundancy than that.