How to connect to custom port in the DNS proxy mode?

I am create a dns record let’s named “a.domain” in Proxied status and I has opened a port “1234”. It can not connect to the a.domain:1234 to my server. How to solve it ?

You can’t - only specific ports work with the proxy.

You should use something like Cloudflare Tunnels where you can map a hostname (on the standard ports of 80/443) to your internal service’s port of 1234.


Is it ok to use nginx to forward the request from proxy server of Cloudflare to my port(1234)?
I have try this way and the speed of response is slow. Is there any limit for this way?

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