容易犯错的地方：查看/etc/resolv.conf 确保你的DNS是否正确

DNS正向解析

（1）安装软件 bind bind-chroot

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[root@wei csdn]# yum install -y bind bind-chroot

2.编辑DNS的主配置文件，创建区域wei.com

新建named.conf

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[root@wei named]# vim /var/named/chroot/etc/named.conf

填写内容

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options{
   directory “/var/named";
};
zone "wei.com"{
  type master;
  file "wei.com.zone"
}:

3.复制记录文件的模板，并编辑

模板：/usr/share/doc/bind-9.9.4/sample/var/named/named.localhost

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[root@wei named]# cd /usr/share/doc/bind-9.9.4/sample/var/named/

[root@wei named]# cp named.localhost /var/named/chroot/var/named/wei.com.zone 	

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$TTL 1D
@       IN SOA  wei.com. 123456.qq.com. (
                                        0       ; serial
                                        1D      ; refresh
                                        1H      ; retry
                                        1W      ; expire
                                        3H )    ; minimum
        NS      dns01.wei.com.
dns01   A       192.168.196.132
web     A       192.168.1.1
ftp     A       192.168.1.2
        MX  10  mail.wei.com.
mail    A       192.168.1.3

4.启动named服务

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[root@wei named]# systemctl start named-chroot

[root@wei named]# systemctl start named

开机自启

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[root@wei named]# systemctl enable named-chroot

[root@wei named]# systemctl enable named

查看端口53

5.测试

（1）nslookup

（2）dig

[root@wei named]# dig -t A web.wei.com