SSL error:14094418:SSL routines:SSL3_READ_BYTES:tlsv1 alert unknown ca:SSL alert

Mon Nov 9 20:48:08 UTC 2020

Thanks Maxim for your feedback. 

Yeah, I believe it's an issue with the intermediate certificates. So, can
you please let me know how can I obtain this intermediate certificates so
that I can append it to the certificate itself.

I can't also change this from the upstream server; as we are getting those
from one of our providers.

Currently I have the Certificate, Key and CA files only.

Posted at Nginx Forum: https://forum.nginx.org/read.php?2,289880,289929#msg-289929