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SSL_ERROR_BAD_CERT_DOMAIN but Cert is okay

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jan.wagner
jan.wagner
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Hey Folks,

I'm the CA guy in our company and we have an SAP webserver (I know... :-/) running an website on port 8310. There is an valid wildcard certificate attached to this site. All browsers show this as valid but not Firefox. Message is SSL_ERROR_BAD_CERT_DOMAIN. Domain ist hostname.sap.domain.tld:8310. Cert ist *.sap.domain.tld. With sha256, SANs etc. Firefox also trustes this CA and Root CA of course. Otherwise there would be another error with untrusted issuer or so.

Why does it not match and why does Firefox show the 8310 port there? I'm searching for days but do not find anything.

Thank you very much in advance.

Hey Folks, I'm the CA guy in our company and we have an SAP webserver (I know... :-/) running an website on port 8310. There is an valid wildcard certificate attached to this site. All browsers show this as valid but not Firefox. Message is SSL_ERROR_BAD_CERT_DOMAIN. Domain ist hostname.sap.domain.tld:8310. Cert ist *.sap.domain.tld. With sha256, SANs etc. Firefox also trustes this CA and Root CA of course. Otherwise there would be another error with untrusted issuer or so. Why does it not match and why does Firefox show the 8310 port there? I'm searching for days but do not find anything. Thank you very much in advance.