yum install bind bind-utils -y

修改文件

/etc/named.conf

/etc/named.github.zones

/var/named/amazonaws.com.zone /var/named/fastly.net.zone /var/named/github.com.zone /var/named/github.community.zone /var/named/github.io.zone /var/named/githubassets.com.zone /var/named/githubstatus.com.zone /var/named/githubusercontent.com.zone

启动服务

systemctl statr named

设为开机启动

systemctl enable named

然后将服务，在防火墙上放行：

firewall-cmd --add-service=dns --permanent

firewall-cmd --reload