The following instructions assume that you have a basic setup with at least one reverse proxy and proxy service. If not, see Managing Reverse Proxies and Authentication and complete a basic setup before continuing.
Click Devices > Access Gateways > Edit > [Name of Reverse Proxy].
In the Proxy Service List section, click New.
Specify a name for the proxy service, then click OK.
Click the newly added proxy service and specify the following details:
Proxy Service Name: Specify a display name for the proxy service, which Administration Console uses for its interfaces.
Published DNS Name: Specify the DNS name you want the public to use to access your site. This DNS name must resolve to the IP address you set up as the listening address.
Multi-Homing Type: Select the multi-homing method that Access Gateway must use to identify this proxy service.
Web Server IP Address: Specify the IP address of the IIS web server.
Host Header: Select the Web Server Host Name option.
Web Server Host Name: Specify the DNS name of the Outlook Web Access server that Access Gateway must forward to the web server.
Click OK.
Continue with Configuring an Authentication Procedure.