To configure an HTTPS redirect using IIS, follow these steps:

1. Enable URL Rewrite Module: Ensure the "URL Rewrite" module is enabled in IIS.

2. Create a New Redirect Rule:

   • Name: Enter a name for your rule (e.g., "HTTPS Redirect").
   • Action Type: Select "Redirect".

3. Set Match URL: Use '*' or (.*) to match all incoming requests.

4. Add Condition:

   • Input String: {HTTPS}
   • Pattern: ^OFF$
   • This condition triggers the redirect when HTTPS is not present (i.e., when using HTTP).

5. Redirect URL: Set to https://{HTTP_HOST}{REQUEST_URI} to maintain the correct domain and path.

6. Redirect Type: Choose "Permanent" (301) for a permanent redirect, beneficial for SEO.

7. Append Query String: Check the box to preserve existing query parameters during redirection.

8. Apply Changes: Save the rule and test by accessing your site via HTTP to ensure it redirects correctly to HTTPS.

9. Verify Configuration:

   • Check the web.config file in the document root for the XML configuration.
   • If missing, create a new file with the necessary XML content.