why nslookup not recieve dingo response?

[guorouda]

I know it maybe not a problem of dingo. I download dingo and try to use it. On my terminal , I get many outputs which like these: 2021/12/15 00:52:03 resolving cn.archive.ubuntu.com./AAAA 2021/12/15 00:52:03 resolving cn.archive.ubuntu.com./A 2021/12/15 00:52:04 resolving security.ubuntu.com./AAAA 2021/12/15 00:52:04 resolving security.ubuntu.com./A 2021/12/15 00:52:04 resolving dl.google.com./A 2021/12/15 00:52:04 resolving dl.google.com./AAAA 2021/12/15 00:52:08 resolving _http._tcp.cn.archive.ubuntu.com./SRV It seems dingo works. But My nslookup only ;; connection timed out; no servers could be reached

What configuration do I miss or what's wrong with my ubuntu 21? It's wired to me, since it seems that none of dingo user get the error when I search an answer on the web.

I have no idea on how does this work, so maybe I search the wrong place using the wrong key.

I hope someone here can help me. Thanks a lot.