DNS 服务器配置

配置文件 /etc/named.conf
日志文件 /var/log/messages
准备两台虚拟机（server (IP 192.168.56.2) , client (IP 192.168.56.3）)

在server上安装DNS服务
关闭防火墙

#systemctl stop firewalld

查看DNS是否安装

#yum info named

Step1:下载服务

# yum install named bind bind-chroot bind-utils //正式安装

Step2：配置named.conf文件

# vi /etc/named.conf

listen-on port 53 { 127.0.0.1; } //127.0.0.1；改成any；
allow-query { localhost; } //localhost；改成any；
在底部插入文本
zone "mysite.com" IN {
type master;
file "mysite.com.zone"；
allow-update { none; };
};
Step3:增加自定义域名解析文件及反向解析

# cd /var/named

Step4:拷贝服务到域名

#cp  /usr/share/doc/bind-9.9.4/sample/var/named/named.localhost\
  ./mysite.com.zone 

Step5：添加A数据

#vi mysite.com.zone

www<Tab>IN A<Tab>192.168.1.100
Step6:配置服务

#systemctl start named  

Step7:在client上配置resolv.conf

#vi /etc/resolv.conf

nameserver 192.168.56.2 //nameserver 221.228.255.1前加“#”
Step8:测试DNS服务

#ping www.mysite.com

PING www.mysite.com (192.168.1.100) 56(84) bytes of data.
From 10.20.1.1 icmp_seq=1 Time to live exceeded
From 10.20.1.1 icmp_seq=2 Time to live exceeded
From 10.20.1.1 icmp_seq=3 Time to live exceeded