running application from linux arm using httpclient I have exception calling an api http with self signed certificate

Question

Using dotnet 7 my application calls a https api service in my local network with self signed certificate.

I run it from a Windows client and I have no problems.

I run it from a linux arm raspberry device and I have the following exception:

"One or more errors occurred. (The SSL connection could not be established, see inner exception.)"

and the inner exception is "Received an unexpected EOF or 0 bytes from the transport stream."

This is the code:

        private void testConn(string apiUrl, LoginPostData loginData)
        {
            var handler = new HttpClientHandler();
            handler.ServerCertificateCustomValidationCallback = HttpClientHandler.DangerousAcceptAnyServerCertificateValidator;
            //handler.ServerCertificateCustomValidationCallback = (httpRequestMessage, cert, cetChain, policyErrors) => { return true; };
            HttpClient client = new HttpClient(handler);
            client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
            Task<HttpResponseMessage> response = client.PostAsJsonAsync(apiUrl, loginData);
            //...
        }

Answer 1

Unlike windows, the Linux network layer does not support overriding ssl certificate validation. You must add the certificate as a trusted.

how this is done will depend on your distro.

Answer 2

(Extra post to show previous)