Issue
After configuring the SSL certificate file and key in the Tableau Server Configuration dialog box, you may see the following error messages:“The specified SSL Certificate failed validation. Check that it is a valid PEM-encoded x509 certificate.”
Or
“The specified SSL Certificate Key failed validation. Check that it is a valid RSA or DSA key and that it is not password protected.”
Or
“The specified SSL Certificate Key failed validation. Check that it is a valid RSA or DSA key and that it is not password protected.”