How to Modify VMRC Settings on a Host

You can configure Virtual Machine Remote Control (VMRC) setting when adding a host by using the Add Hosts Wizard, with the exception of encryption settings. By default, encryption for VMRC connections is not enabled. To enable encryption for VMRC connections, you must modify the host properties in the VMM Administrator Console.

Use the following procedure to modify VMRC settings, including enabling encryption.

To modify VMRC settings on a host

  1. In Hosts view, navigate to the host group in the navigation pane that contains the host you want to modify and then, in the results pane, double-click the host.

  2. Click the Options tab.

  3. VMRC is enabled by default. If you would like to disable VMRC, clear the VRMC enabled check box.

    Note

    If you disable VMRC, all other VMRC configuration options become unavailable.

  4. In the VMRC port box, set the port that the VMRC client will use to communicate with Virtual Server. The default port is 5900; you can enter any value from 1–65535.

    Note

    You do not need to enter a firewall exception for the port.

  5. If you would like to enforce a connection time-out for VMRC access, select the Enable connection timeout option and then specify the time-out interval. The default time-out interval is 15 minutes; you can enter any value from 1–600.

  6. If you would like to allow multiple users to access virtual machines on this host, select the Allow multiple VMRC connections check box. For more information about allowing multiple connections, see About Virtual Machine Remote Control (VMRC).

  7. If you would like to encrypt VMRC connections for this host, select the Enable secure VMRC check box. This enables Secure Sockets Layer (SSL) encryption using an unsigned certificate from Virtual Server.

    Important

    It is recommended that you implement Secure Sockets Layer (SSL) security for Virtual Machine Remote Control (VMRC) connections, particularly if you use Basic authentication, which transmits passwords in plaintext.

  8. If you would like to use a signed certificate from a certification authority to implement Secure Sockets Layer (SSL) encryption for the VMRC connections for this host, do one of the following:

    1. Click Browse to upload or to replace a certificate.
    2. Click Generate Certificate Request to open the Secure VMRC Certificate Request dialog box, which you can use to generate a certificate request file. You can then send the certificate request file to a certification authority to obtain a certificate to upload.
  9. In the Secure VMRC Certificate Request dialog box, do the following:

    1. Type information about your organization in the appropriate boxes.

      Important

      Do not type more than two characters in the Country/Region box, or more than 64 characters in any other box. If you exceed these limits, the certificate request file is created but is not valid for creating a certificate from a certification authority.

    2. In the Key length list, choose the level of encryption you would like the certificate to use. The default key length is 512 bits; you can select 1024, 2048, or 4096 bits from the list.

      Note

      You can generate a certificate request with a key length greater than 4096 bits by using the New-VMRCCertificateRequest cmdlet in Windows PowerShell - Virtual Machine Manager command shell. For more information about using the Windows PowerShell - Virtual Machine Manager command shell, see the Virtual Machine Manager Scripting Guide at https://go.microsoft.com/fwlink/?LinkId=91727. Generating a certificate request with a key length over 4096 bits might take a long time. You can track the progress of the process in Jobs view.

    3. In the Save request file to box, type the file path and file name for the certificate file, or click Browse to navigate to a folder, type the file name, and then click Save.

    4. Click Generate Certificate Request to request the certificate.

      Note

      Generating a certificate request might take a long time. You can track the progress of this process in Jobs view.

See Also

Concepts

About Virtual Machine Remote Control (VMRC)
Hosts

Other Resources

How to Add Hosts in a Trusted Domain
How to Add a Host on a Perimeter Network