$ORIGIN child.parent.good-grandparent-host-1.basic01.xa.            ; Must end with "."
$TTL 3600

@       SOA     ns1 admin. (
                2024050801      ; serial
                6h              ; refresh
                1h              ; retry
                1w              ; expire
                1d )            ; minimum

@		NS	ns1.good-grandparent-host-1.basic01.xa.
@		NS	ns2.good-grandparent-host-1.basic01.xa.