centos 配置dns转发服务器

options {
        listen-on port 53 { any ; };
        listen-on-v6 port 53 { ::1; };
        directory       "/var/named";
        dump-file       "/var/named/data/cache_dump.db";
        statistics-file "/var/named/data/named_stats.txt";
        memstatistics-file "/var/named/data/named_mem_stats.txt";
        allow-query     { any ; };
        recursion yes;#       forward only;
        forwarders {
                119.29.29.29;
                180.76.76.76;
        };        dnssec-enable yes;
        dnssec-validation yes;
        dnssec-lookaside auto;        /* Path to ISC DLV key */
        bindkeys-file "/etc/named.iscdlv.key";        managed-keys-directory "/var/named/dynamic";
};

​​​http://superrot.blog.51cto.com/6590958/1394689​​chown ​​:named ​​​​/etc/named​​​​.conf​​​rndc-confgen -a
chown :named /etc/rndc.key
chmod ​​640 ​​​​/etc/rndc​​​​.key​​service named start