CentOS 7实现DNS+DHCP动态更新详解

        };    

};

zone "." IN {   

        type hint;    

        file "named.ca";    

};

include "/etc/named.rfc1912.zones";   

include "/etc/named.root.key";

key SEC_DDNS {     

        algorithm hmac-md5;      

        secret 7ObhTIhKeDFMR2SbbS5s8A==;      

};      

zone "it.lab" IN {    

        type master;    

        file "it.lab.forward";    

       allow-update { key SEC_DDNS ; };    

};

zone "1.168.192.in-addr.arpa" IN {    

        type master;    

        file "1.168.192.reverse";    

        allow-update { key SEC_DDNS ; };     

};