dns更新
配置dns允许辅助dns进行添加
主dns设置允许更新
vim /etc/named.rfc1912.inter
23 allow-update {172.25.254.123 ;};
chmod g+w /var/named/ 修改目录权限对组可写
systemctl restart named
辅dns
[root@dns-desktop etc]# nsupdate
> server 172.25.254.81
> update add kuaile.xaut.com 86400 A 1.1.1.1
> send
> quit
dig kuaile.xaut.com