; Copyright (C) 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/. ; ; See the COPYRIGHT file distributed with this work for additional ; information regarding copyright ownership. $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.