; 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 300 . IN SOA gson.nominum.com. a.root.servers.nil. ( 2000082401 ; serial 1800 ; refresh (30 minutes) 1800 ; retry (30 minutes) 1814400 ; expire (3 weeks) 3600 ; minimum (1 hour) ) . NS a.root-servers.nil. a.root-servers.nil. A 10.53.0.1 example NS ns.example ns.example A 10.53.0.1