@johnjiang85 似乎是你们的 proxy 挂了? 我用境外机器 curl 是可用的,境内就都如下:
# curl https://dns.pub/dns-query?name=qq.com
{"Status":2,"Comment":"DNS query failure (read udp 127.0.0.1:34399-\u003e127.0.0.1:53: read: connection refused)"}
# curl https://doh.pub/dns-query?name=qq.com
{"Status":2,"Comment":"DNS query failure (read udp 127.0.0.1:36585-\u003e127.0.0.1:53: read: connection refused)"}