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Adding a Communicator Web Access Virtual Server

Communications Server 2007 R2

Topic Last Modified: 2009-08-06

The Communicator Web Access Setup Wizard only enables you create one virtual server, even though Communicator Web Access allows a single computer to host multiple virtual servers. If you want to add additional virtual servers to a computer, you must create those virtual servers by using the Communicator Web Access snap-in.

Before you add a new virtual server you need to determine the following:

  • The type of authentication method to be used by the virtual server.
  • The connection type to be used by the virtual server.
  • The IP address and port to be used by the virtual server.
  • The next hop server to be used by the virtual server.

  1. Log on to the computer that is running the Communicator Web Access snap-in. You must log on as a member of the local Administrators group and the RTCUniversalServerAdmins group.

  2. Click Start, point to Administrative Tools, and then click Microsoft Office Communications Server 2007 R2, Communicator Web Access.

  3. In the Communicator Web Access snap-in, in the scope pane, locate the name of the computer that you want to host the virtual server, right-click the computer name, and then click Create Virtual Web Server.

  4. In the Create Virtual Server Wizard, on the Welcome page, click Next.

  5. On the Select Virtual Server Type page, click Internal or External (as appropriate), and then click Next.

  6. On the Select Authentication Type page, do one of the following:

    • If you want the virtual server to support the authentication methods built into the operating system, select Use built-in authentication and then click Next.
    • If you want the virtual server to support a custom authentication mechanism, including two-factor authentication or single sign on (SSO) solutions, select Use custom authentication, and then click Next.
  7. Do one of the following depending on the authentication method you selected and the type of virtual server you are creating:

    • If you are using built-in authentication and are creating an internal virtual server, select Forms-based authentication and/or Integrated (NTLM/Kerberos) password authentication from the Select Authentication Type page, and then click Next.
    • If you are creating an external virtual server, you will see the Select Authentication Type page. However, you will not be able to select an authentication mechanism. Instead, forms-based authentication is automatically selected for you. This is because you cannot use integrated password authentication with an external virtual server. Click Next.
    • If you chose custom authentication, you will not see the Select Authentication Type page. This is because you cannot use either forms-based authentication or integrated password authentication with custom authentication. Instead, you go directly to the Select Connection Type page.
  8. On the Select Connection Type page, do one of the following:

    • Select HTTP (May be used with SSL accelerator) and then click Next.
    • Select HTTPS (Recommended) and then click Select Certificate. In the Select Certificate dialog box, select the certificate that you want to use with this virtual server. Click the appropriate certificate and then click OK. On the Select Connection Type page, click Next.
  9. On the Select IP Address and Port Settings page, select the IP address to be assigned to the virtual server, or use the default value [All Unassigned]. In Port, type the port to be used by the virtual server and then click Next. Do not select a port that is already in use by another application (for example, port 135, which is used by Remote Desktop, or port 445, which is used by file and printer sharing. If you select a port that is already in use setup will continue, but, upon completion, you will not be able to start your virtual server.

  10. On the Server Description page, type a name for the virtual server in the Description box and then click Next. This is how the virtual server will be identified both in the Communicator Web Access snap-in and in IIS Manager.

  11. On the Select a listening port page, type the port number that the Communicator Web Access server uses to listen for Session Initiation Protocol (SIP) messages in Listening port, and then click Next.

  12. On the Select a pool page, select the fully qualified domain name (FQDN) of the Office Communications 2007 R2 server or server pool that will act as the “next hop” server for anonymous users. Click Next.

  13. On the Start Server Option page, select Start this virtual server after the Create Virtual Server Wizard finishes and then click Next. This step ensures that the virtual server starts immediately after it is created. Virtual servers must be started before they can be accessed.

  14. On the Review Settings Before Virtual Server Creation page, verify that the virtual server has been configured correctly and then click Next.

  15. On the Create Virtual Server Complete page, click Close to close the Create Virtual Server Wizard.

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