首先是套用cloudflare-dns服务后的报错提示：
客户端错误记录：
[Error] v2ray.com/core/app/dns: failed to retrieve response > Post "https://cloudflare-dns.com/dns-query": context deadline exceeded
[Error] v2ray.com/core/app/dns: failed to retrieve response > Post "https://cloudflare-dns.com/dns-query": context deadline exceeded
服务器端错误记录：
failed to retrieve response > Post https://cloudflare-dns.com/dns-query: context deadline exceeded
failed to retrieve response > Post https://cloudflare-dns.com/dns-query: context deadline exceeded
解决方法：
1，来到cloudflare里所套用的域名界面，选择SSL/TLS选项，如下图：
2，将模式改为FULL即可
