; Copyright (C) Internet Systems Consortium, Inc. ("ISC") ; ; SPDX-License-Identifier: MPL-2.0 ; ; 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 https://mozilla.org/MPL/2.0/. ; ; See the COPYRIGHT file distributed with this work for additional ; information regarding copyright ownership. $TTL 3600 @ SOA a.root-servers.nil. hostmaster 1 3600 1200 604800 3600 @ NS a.root-servers.nil. a.root-servers.nil. A 10.53.0.1 example NS ns2.example. ns2.example. A 10.53.0.2 initially-unavailable. NS ns2.initially-unavailable. ns2.initially-unavailable. A 10.53.0.2