We have a private intranet site, created in vb.net running on Windows Server 2019. I want to use https, so a padlock displays in the browser rather than, "Not secured".
I can't figure out how to validate a certificate and import it given this scenario. One roadblock is the site is not available on the Internet.
I'm new to this... Is it possible for me to implement SSL/https for free without the site being online? If so, please explain as clearly or step-by-step as possible. Thank you.