bind9 配置企业DNS

1. named.conf.local
zone "xxx.com" {
type master;
file "/etc/bind/zones/xxx.db";
};

2. /etc/bind/zones/xxx.db
;
; BIND data file for local loopback interface
;
$TTL    604800
@       IN      SOA     local.caredear root.local.caredear (
                              2         ; Serial
                         604800         ; Refresh
                          86400         ; Retry
                        2419200         ; Expire
                         604800 )       ; Negative Cache TTL
;
@       IN      NS      localhost.
@       IN      A       127.0.0.1
@       IN      AAAA    ::1
;talk   IN      A       192.168.1.245

3. 配置forward first（named.conf.options)
options {
        directory "/var/cache/bind";


        // If there is a firewall between you and nameservers you want
        // to talk to, you may need to fix the firewall to allow multiple
        // ports to talk.  See


        // If your ISP provided one or more IP addresses for stable
        // nameservers, you probably want to use them as forwarders.
        // Uncomment the following block, and insert the addresses replacing
        // the all-0's placeholder.
        forward first;
        forwarders {
                223.5.5.5;
                114.114.114.114;
         };
        allow-query {
                any;
        };


        //========================================================================
        // If BIND logs error messages about the root key being expired,
        // you will need to update your keys.  See
        //========================================================================
        dnssec-validation auto;


        auth-nxdomain no;    # conform to RFC1035
        listen-on-v6 { any; };
};


key "rndc-key" {
        algorithm hmac-md5;
        secret "B7DFyJprYRYtSvsqAuzzdA==";
};

4. ping talk.xxx.com