I have a DNN instance running a few portals. I want to secure one portal with an SSL certificate. I can do this through Plesk easily enough on a single portal site by installing an SSL cert on the domain and adding a redirect to the web.config to redirect the entire site to https://

 <rewrite>

      <rules>

        <rule name="HTTP to HTTPS redirect" stopProcessing="true">

          <match url="(.*)">

          </match>

          <conditions>

            <add input="{HTTPS}" pattern="off" ignoreCase="true">

            </add>

          </conditions>

          <action type="Redirect" redirectType="Permanent" url="https://{HTTP_HOST}/{R:1}">

          </action>

        </rule>

      </rules>

    </rewrite>

But this wont work on a DNN instance with multiple portals as it will try to redirect all the sites that don't have ssl yet to https://. Any advice appreciated!

Maybe I'm going about this all wrong?