; SPDX-License-Identifier: LGPL-2.1-or-later $TTL 300 . IN SOA ns1.unsigned.test. root.unsigned.test. ( 20220416 ; serial 3H ; refresh 15M ; retry 1W ; expire 1D ; minimum TTL ) . NS ns1.unsigned.test ns1.unsigned.test A 10.0.0.1 test NS ns1.unsigned.test