Allow requests from external ips - Custom domains connected to main rails app

[indigotechtutorials]

I'm just looking for an answer wether or not Kamal blocks requests from external ips

I have a rails app where a user can create an organization and then get a subdomain to it. Then ultimately they would want to link there own domain instead of the subdomain.

I'm attempting to get this to work by using CNAME forwarding on the dns level for the domain to a subdomain.

Anyways I deployed my code and tried to access to domain which looks like it is making the request because I see logs in kamal proxy logs -f command but I see this error message

2025-09-08T06:27:39.321518000Z {"time":"2025-09-08T06:27:39.321325438Z","level":"INFO","msg":"http: TLS handshake error from <my-ip-address>: unknown server name"}

[indigotechtutorials]

I overlooked this yesterday because I was tired. LOL. It said TLS handshake error so the issue was with the SSL cert not corresponding with the custom domain which is accurate. I went to incognito and made the same request ensuring to use http:// and it did get connected. Now my page was not rendered correctly but that is because this is still a work in progress.

I'm closing this because there is no issue with Kamal everything is working great so far.