centos7.4安装 DNS 服务器
centos7.4安装 DNS 服务器DNS服务器ip为 192.168.221.10(关闭防火墙)
DNS客户端ip为 192.168.221.20
[*]安装 bind-9.9.4-50.el7.x86_64
yum install bind -y
[*]修改配置文件 /etc/named.conf
// 修改
listen-on port 53 { any; };
listen-on-v6 port 53 { any; };
allow-query { any; };
// 增加
zone "apeng.com." IN {
type master;
file "apeng.com.zone";
};
[*]生成区域配置文件
# cd /var/named/
# cp -p named.localhost apeng.com.zone
# vim apeng.com.zone
http://i2.运维网.com/images/blog/201804/04/2a1b14553a03abe05a247449ef34c6c8.png
[*]启动 named 服务
# systemctl start named
DNS 客户端访问
将 DNS 修改为 192.168.221.10
# sed -ri '/DNS1/c\DNS1=192.168.221.10' /etc/sysconfig/network-scripts/ifcfg-ens33
# systemctl restart network
http://i2.运维网.com/images/blog/201804/04/88c24a6a0eaab76336767bc04448118d.png
设置 DNS 转发
// 在 DNS 服务器上设置
# vim /etc/named.conf// 注释掉 zone，加上以下两行
forward only;
forwarders { 8.8.8.8; };
# systemctl restart named
在dns客户端访问
http://i2.运维网.com/images/blog/201804/04/53442a6a0c5de78470e8feb469c1f6dc.png
DNS主从
主dns服务器配置
http://i2.运维网.com/images/blog/201804/04/171d99f09342a4e1f9c4dd09df6674a7.png
从dns服务器配置(安装bind)
http://i2.运维网.com/images/blog/201804/04/f2292628638c5dcf9a7ef73d6156f88e.png
会在从dns服务器上生成/var/named/slaves/apeng.com.zone.file 文件
http://i2.运维网.com/images/blog/201804/04/2302e10a36ddf85da3fca69be7a36df8.png
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