bind配置

 首先设定本机的dns：

  [root@128 ~]# vim /etc/resolv.conf

   ; generated by /sbin/dhclient-script

search localdomain

nameserver 192.168.217.128

修改配置文件：

[root@128 ~]# vim /etc/named.conf

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;

        dnssec-enable yes;

        dnssec-validation yes;

        /* Path to ISC DLV key */

        bindkeys-file "/etc/named.iscdlv.key";

添加正向解析：

[root@128 ~]# vim /etc/named.rfc1912.zones

zone "extmail.com" IN {

        type master;

        file "extmail.com.zone";

};

添加正向解库文件;

[root@128 ~]# vim /var/named/extmail.com.zone

完成，测试：

[root@128 ~]# dig -t -A www.extmail.com

;; Warning, ignoring invalid type -A

; <<>> DiG 9.8.2rc1-RedHat-9.8.2-0.47.rc1.el6_8.2 <<>> -t -A www.extmail.com

;; global options: +cmd

;; Got answer:

;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 15939

;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:

;www.extmail.com.        IN    A

;; Query time: 1 msec

;; SERVER: 192.168.217.128#53(192.168.217.128)

;; WHEN: Wed Nov  2 03:09:46 2016

;; MSG SIZE  rcvd: 33