Every time that the SSL certificate on our Tableau server is up for renewal, I need to remember how to install the certificate. These are my notes for 2020 when the current certificate expires. :)
After obtaining the SSL certificate, export it from IIS into a PFX file (this is the default format).
Next, open a command prompt and type:
openssl pkcs12 -in [yourfile.pfx] -nocerts -out [keyfile-encrypted.key]
This will export the .key file. Next type:
openssl pkcs12 -in [yourfile.pfx] -clcerts -nokeys -out [certificate.crt]
Which will export the crt file.
Upload these files to the Tableau server into the c:\program files\tableau\tableau server\ssl directory.
Stop Tableau and then open the Configure Tableau app.
Select the SSL tab.
Select the new crt and key files.
Start Tableau service.