zone "fang.com" IN {
        type master;
        file "fang.com.zone";
        allow-transfer {slaves;}; # 允许哪些从服务器从主服务器同步数据
};

zone "fang.com" IN {
        type slave;   # 备用节点
        masters { 10.0.2.10; };  # 指定主节点
        file "slaves/fang.com.zone"; # 数据文件保存路径
};