dns双网怎么解析

// 主配置文件 named.conf
options {
    directory "/var/named";
};

view "internal" {
    match-clients { 192.168.0.0/24; };
    zone "example.com" IN {
        type master;
        file "internal/example.com.zone";
    };
};

view "external" {
    match-clients { any; };
    zone "example.com" IN {
        type master;
        file "external/example.com.zone";
    };
};

// 内网区域文件 internal/example.com.zone
$TTL 86400
@       IN      SOA     ns1.example.com. admin.example.com. (
                        2023010101      ; serial
                        3600            ; refresh
                        1800            ; retry
                        604800          ; expire
                        86400           ; minimum TTL
                        )
        IN      NS      ns1.example.com.
        IN      NS      ns2.example.com.
www     IN      A       192.168.0.1

// 外网区域文件 external/example.com.zone
$TTL 86400
@       IN      SOA     ns1.example.com. admin.example.com. (
                        2023010101      ; serial
                        3600            ; refresh
                        1800            ; retry
                        604800          ; expire
                        86400           ; minimum TTL
                        )
        IN      NS      ns1.example.com.
        IN      NS      ns2.example.com.
www     IN      A       203.0.113.1