安装bind
1、安装bind软件，需要安装3 个bind、bind-chroot、bind-util
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[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!
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2、修改配置文件“/etc/named.conf”，追加“forward”
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[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;
}
};
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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
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[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]#
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4、启动服务
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[root@localhost pub]# service named start
启动named： [确定]
[root@localhost pub]#
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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
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[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
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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
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[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;
}
};
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2）找一个其他ip地址来测试
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[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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