Zone 文件

$ORIGIN example.com.
$TTL 3600
@       IN SOA  ns1.example.com. admin.example.com. (
                        2021081001  ; Serial
                        3600        ; Refresh
                        1800        ; Retry
                        604800      ; Expire
                        3600 )      ; Minimum TTL

; Name Servers
example.com.    IN  NS  ns1.example.com.
example.com.    IN  NS  ns2.example.com.

; A Records
ns1.example.com.    IN  A   192.0.2.1
ns2.example.com.    IN  A   198.51.100.1
www.example.com.    IN  A   203.0.113.1

; CNAME Records
mail.example.com.   IN  CNAME   www.example.com.
ftp.example.com.    IN  CNAME   www.example.com.

; MX Records
example.com.        IN  MX  10 mail.example.com.
example.com.        IN  MX  20 backup-mail.example.com.