In older versions of SharePoint we could redirect calls to a site to use HTTPS by using Alternate Access Maps. In the new version SP2016 this is no longer working.
I have tried installing a rewrite module in IIS but, it is not working either.
I am using ADFS authentication, so I created the Web App in the Default zone with SSL and Host Headers to use ADFS. I then created an extended app to use the Hostname on port 80 for NTLM authentication, to allow crawling of the site. Using MS recommendations from: https://technet.microsoft.com/en-us/library/cc262350(v=office.16).aspx
I can access the site using HTTPS and login with ADFS no problem. I require a redirect from HTTP to HTTPS for when users, working internally, just enter www.domain.com.
Externally ADFS v4.0 WAP is able to do the redirect.
