; Copyright (C) 2012, 2013, 2016 Internet Systems Consortium, Inc. ("ISC")

;

; This Source Code Form is subject to the terms of the Mozilla Public

; License, v. 2.0. If a copy of the MPL was not distributed with this

; file, You can obtain one at http://mozilla.org/MPL/2.0/.

$TTL 120

@ SOA ns. hostmaster.ns. ( 1 3600 1200 604800 60 )

@ NS ns.

ns. A 10.53.0.1

. A 10.53.0.1

; limit responses from here

tld2. NS ns.tld2.

ns.tld2. A 10.53.0.2

; limit recursion to here

tld3. NS ns.tld3.

ns.tld3. A 10.53.0.3

; generate SERVFAIL

tld4. NS ns.tld3.