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

wKioL1hGNEXxD9r_AAA4aeyus0U566.png




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