来自于阿里云技术支持工单
如果你要自己设置 dns, 可用:
nameserver 100.100.2.136nameserver 100.100.2.138nameserver 223.5.5.5nameserver 223.6.6.6options timeout:2 attempts:3 rotate single-request-reopen
来源: https://yq.aliyun.com/articles/697708