Web publishing rules are used by Forefront TMG Server to securely publish internal resources over the Internet. In addition to providing web service URLs for the various Lync Server virtual IIS directories, it is also necessary to create publishing rules for simple URLs and the LyncDiscover service. For each simple URL, it is necessary to create an individual rule on the reverse proxy that references that URL. The following procedures can be used to create web publishing rules:
1. Log on to the Forefront TMG Server.
2. Click Start, All Programs, Microsoft Forefront TMG, and Forefront TMG Management.
3. In the left pane, expand the name of the TMG Server.
4. Right-click Firewall Policy, click New, and click Web ...