使用bind軟件搭建智能DNS文檔配置/etc/named.conf配置文件內容：

acl CN {
        10.0.0.0/16;
        127.0.0.1/8;
};
acl US {
        10.1.0.0/16;
};
acl RU {
        10.2.0.0/16;
};
options {
        listen-on port 53 { 127.0.0.1; 10.0.0.200; };
        #listen-on-v6 { none; };
        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     { 127.0.0.1; 10.0.0.0/8; };
        #allow-transfer { 10.0.0.200; };
        forward first;
        forwarders {
            8.8.8.8;
            8.8.4.4;
        };
        interface-interval 30;
        recursion yes;
        dnssec-enable no;
        dnssec-validation no; 
        dnssec-lookaside auto;
        bindkeys-file "/etc/named.iscdlv.key";
        managed-keys-directory "/var/named/dynamic";
        pid-file "/run/named/named.pid";
        session-keyfile "/run/named/session.key";
};
logging {
#        channel default_debug {
#                file "data/named.run";
#                severity dynamic;
#        };  
     channel default-log {
         file "/var/log/named/named_default.log" versions 10 size 200m;
         severity info;
         print-time yes;
     };  
     channel lamer-log {
         file"/var/log/named/named_lamer.log" versions 3 size 100m;
         severity info;
         print-severity yes; 
        print-time yes;
         print-category yes;
     };  
    channel query-log {
         file "/var/log/named/named_query.log" versions 10 size 1000m;
         severity info;
         print-time yes;
     };
    channel security-log {
         file"/var/log/named/named_security.log" versions 3 size 100m;
        severity info;
        print-severity yes;
        print-time yes;
        print-category yes;
    };
     category lame-servers { lamer-log; };
    category security{ security-log;};     category queries { query-log;};
    category default { default-log;};
};
#view "." {
#       match-clients { CN;US;RU };
#       zone "." IN {
#               type hint;
#               file "named.ca";
#       };
#};
include "/etc/named.rfc1912.zones";
include "/etc/named.root.key";

文件/etc/named.rfc1912.zones內容：

zone "localhost" IN {
        type master;
        file "named.localhost";
        allow-update { none; };
};
zone "1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa" IN {
        type master;
        file "named.loopback";
        allow-update { none; };
};
zone "1.0.0.127.in-addr.arpa" IN {
        type master;
        file "named.loopback";
        allow-update { none; };
};
zone "0.in-addr.arpa" IN {
        type master;
        file "named.empty";
        allow-update { none; };
};
zone "domain.com" IN {
        type master;
        file "domain.com.zone";
};
#zone "0.0.10.in-addr.arpa" IN {
#       type master;
#       file "10.0.0.zone";
#};
};

view CN {
match-clients { 10.0.0.0/16; 127.0.0.1/8; };
zone "localhost.localdomain" IN {
        type master;
        file "named.localhost";
        allow-update { none; };
};
view US {
    match-clients { 10.0.1.0/16 };
    zone "domain.com" IN {
        type master;
        file "domain.com.us";
    };
};
view RU {
    match-clients { 10.2.0.0./16; };
    zone "domain.com" IN {
        type master;
        file "domain.com.ru";
    };
};

在配置智能DNS的時候主要的配置區域是view，配置對應於相同的acl即可。

然後在/var/named/目錄下新建各個區域的DNS解析文件。

配置各個區域的文件DNS的時候和配置DNS文件一致。

配置一個主DNS，然後在各個區域配置一個從DNS。master-slaver的形式同步更能達到效果。

智能DNS