Situation

You would like to switch access to "viflow tracker" to the encrypted communication protocol HTTPS – the required PFX certificate is already available.

Solution

1. The new tracker address must be stored in the custom.js file.  
2. apache\conf\extra\httpd-ssl.conf must be modified in two places – enter Listen 443.
   
3. Extract the crt and key files from the PFX certificate. 

   Instructions: ››› Easy Way To Convert PFX to .Crt & .Key Files In 10 Minutes | BeingCoders (medium.com)

4. Rename the files to server.crt and server.key.

5. Save the respective files under apache\conf\ssl.crt and ssl.key.  

6. Restart the Apache server service.