$TTL 4500 $ORIGIN myzone.org. myzone.org. 1000 IN SOA ( ldns.myzone.org. ns.ldns.myzone.org. 2012113030 12345 1827 2345678 87654 ) ns.ldns A 192.168.100.2 ns2 5600 IN AAAA 2001:dead:dead::2 ns2 6600 IN A 192.168.100.7 ns1 3600 IN A 192.168.100.2 ns1 4600 IN AAAA 2001:dead:dead::1