现有的DNS做转发：
添加域名，如：edge.live.kugou.com
到主配置文件添加转发域名路径：
vi /var/named/chroot/etc/named.conf
include "/var/named/data/kugou.conf";
去到转发域名路径：
cd /var/named/chroot/var/named/data/
在当前目录创建文件：
touch kugou.conf
chown root:named kugou.conf
chmod 660 kugou.conf //给权限和属组
vi kugou.conf //添加域名转发
zone "kugou.com"{ type forward; forward first; forwarders {8.8.8.8;114.114.114.114;};};