Access the Server Manager, and click the URLs tab.
Click the Create Mapping link.
The Create Mapping page is displayed.
In the page that appears, set up regular and reverse mappings in the following manner:
Regular mapping:
Source prefix: http://proxy.mysite.com
Source destination: https://http.mysite.com/
Reverse mapping:
Source prefix: https://http.mysite.com/
Source destination: http://proxy.mysite.com/
Save and Apply your changes.
To see the mappings you just created, click the link called View/Edit Mappings.
This configuration will only work if your content server is running in secure mode.