1; /etc/bind/zones/example.org 2$TTL 3h; 3@ IN SOA ns.example.org. example.org. ( 4 1 ; serial 5 3h; refresh timeout 6 1h; retry timeout 7 1w; expire timeout 8 1h; negative caching TTL 9) 10@ IN NS ns.example.org. ; name server 11@ IN MX 10 example.org. ; mail exchange server 12 13ns IN A 1.2.3.4 14@ IN A 1.2.3.4 15 16ns IN AAAA ef::1 17@ IN AAAA ef::1 18 19www IN CNAME example.org.