pem: openssl x509 -inform DER -in intermediate.crt -out intermediate.pem -text Download it: curl -output intermediate.crt įinally, convert it to. It should give you URI of the signing certificate. We're looking for the issuer (the intermediate certificate is the issuer / signer of the server certificate): openssl x509 -in logcertfile -noout -text | grep -i "issuer" Save the remote server's certificate details: openssl s_client -connect :443 -servername | tee logcertfile Using openssl (comes with Git for Windows). pem format, thenĢa: extend Node’s built-in certificate store using NODE_EXTRA_CA_CERTS,Ģb: or pass your own certificate bundle (intermediates and root) using ca option. You need to complete the certificate chain yourself.ġ: You need to get the missing intermediate certificate in. Logs: " Error: unable to verify the first certificate". It's because browsers tend to complete the chain if it’s not sent from the server. It doesn't show any error (padlock in the address bar is green). The root certificate is supposed to be known by the client. The application serving the certificate has to send the complete chain, this means the server certificate itself and all the intermediates. Root certificates are embedded into the software applications, browsers and operating systems. Intermediate certificate should be installed on the server, along with the server certificate. Root certificate - stores a self-signed certificate.Intermediate certificate - stores a certificate signed by root.Server certificate - stores a certificate signed by intermediate.It means that the webserver you are connecting to is misconfigured and did not include the intermediate certificate in the certificate chain it sent to you.
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