安装bind

1、安装bind软件，需要安装3 个bind、bind-chroot、bind-util

[root@localhost pub]# yum install -y bind bind-chroot bind-utils

Installed:

  bind.i686 32:9.8.2-0.17.rc1.el6_4.6                                                                                     

Complete! 

 

2、修改配置文件“/etc/named.conf”，追加“forward”

[root@localhost pub]# gedit /etc/named.conf

options {

    listen-on port 53 { 127.0.0.1; };

#   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     { localhost; };

    recursion yes;

 

    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";

    forward only;

    forwarders{

       8.8.8.8;   

    }

};

 

3、设置防火墙，这里需要用到53端口。需要开启tcp和udp的53端口，记得重启防火墙 

[root@localhost pub]# gedit /etc/sysconfig/iptables

-A INPUT -m state --state NEW -m tcp -p tcp --dport 443 -j ACCEPT

-A INPUT -m state --state NEW -m tcp -p tcp --dport 53 -j ACCEPT

-A INPUT -m state --state NEW -m udp -p udp --dport 53 -j ACCEPT

 

[root@localhost phpMyAdmin]# service iptables restart

iptables：将链设置为政策 ACCEPT：filter nat                [确定]

iptables：清除防火墙规则：                                 [确定]

iptables：正在卸载模块：                                   [确定]

iptables：应用防火墙规则：                                 [确定]

iptables：载入额外模块：nf_conntrack_ftp                   [确定]

[root@localhost phpMyAdmin]# 

 

4、启动服务

[root@localhost pub]# service named start

启动named：                                              [确定]

[root@localhost pub]# 

 

5、测试，命令格式“dig 网站@ip”，这里用回环地址来测试，看是否能请求成功

[root@localhost pub]# dig www.baidu.com @127.0.0.1

; <<>> DiG 9.8.2rc1-RedHat-9.8.2-0.17.rc1.el6_4.6 <<>> www.baidu.com @127.0.0.1

;; global options: +cmd

;; Got answer:

;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 51491

;; flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:

;www.baidu.com.          IN  A

;; ANSWER SECTION:

www.baidu.com.       1191   IN  CNAME  www.a.shifen.com.

www.a.shifen.com. 299IN  A   14.215.177.38      //这个就是请求到的结果

www.a.shifen.com. 299IN  A   14.215.177.39

;; Query time: 3053 msec

;; SERVER: 127.0.0.1#53(127.0.0.1)

;; WHEN: Tue Aug 14 19:02:59 2018

;; MSG SIZE  rcvd: 90

 

 

6、更改配置文件named.conf，让所有机器都可以使用该服务。

1）将配置文件中的回环地址改为any，意味着允许任何人使用

[root@localhost pub]# gedit /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;

    dnssec-lookaside auto;

 

    /* Path to ISC DLV key */

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

 

    managed-keys-directory "/var/named/dynamic";

    forward only;

    forwarders{

       8.8.8.8;   

    }

};

2）找一个其他ip地址来测试

[root@localhost pub]# service named restart   //重启服务

停止named：                                              [确定]

启动named：                                              [确定]

 

[root@localhost pub]# dig www.baidu.com @192.168.0.113

; <<>> DiG 9.8.2rc1-RedHat-9.8.2-0.17.rc1.el6_4.6 <<>> www.baidu.com @192.168.0.113

;; global options: +cmd

;; Got answer:

;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 37134

;; flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 0, ADDITIONAL: 0

 

;; QUESTION SECTION:

;www.baidu.com.          IN  A

 

;; ANSWER SECTION:

www.baidu.com.       871 IN  CNAME  www.a.shifen.com.

www.a.shifen.com. 299 IN  A   14.215.177.39

www.a.shifen.com. 299 IN  A   14.215.177.38

 

;; Query time: 474 msec

;; SERVER: 192.168.0.113#53(192.168.0.113)

;; WHEN: Tue Aug 14 19:06:19 2018

;; MSG SIZE  rcvd: 90

 

 



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