How to proxy and remove path, but add port

[jaalperin (Jeff Alperin)]

Only recently started using caddy. Most of my proxy directives work, but I can’t seem to find out how to proxy https://my.domain/abc to https://my.domain:12345.

Given this portion of my Caddyfile (which probably shows I am a novice)
xxxxxxxx.duckdns.org/s3 {
    proxy / https://xxxxxxxx.duckdns.org:12345 {
        without s3
        without /s3
        without /s3/
    }
}

https://xxxxxxxx.duckdns.org/s3 results in "502 Bad Gateway" even though
https://xxxxxxxx.duckdns.org:12345 works properly.

Thanks in advance for any help you can give me.

[Whitestrake (Matthew Fay)]

Hi @jaalperin, welcome to the Caddy community!

What’s the result of curl -IL https://xxxxxxxx.duckdns.org:12345 from a shell on the Caddy host? It might help us figure out exactly what Caddy is seeing when it tries to proxy to it.

---

P.S. You can remove the without s3 and without /s3/ variants - the correct form is the middle one.

[jaalperin (Jeff Alperin)]

Thank you Matthew.

The output of the curl command was:
curl: (60) SSL certificate problem: unable to get local issuer certificate
More details here: curl - SSL CA Certificates
curl failed to verify the legitimacy of the server and therefore could not
establish a secure connection to it.

I replaced the cert.pem with fullchain.pem, and the 502 problem resolved.

Very much enjoying the ease of use (and learning) of Caddy. Much easier for me than NGINX was.