Dell ThinOS 2402 and 2405 Administrator’s Guide

Configuring the global connection settings

1. Configure the Broker agent connection on ThinOS. See, Configure the Broker Setup.
2. On the desktop taskbar, click
   
   (Connection Manager) and then click Global Connection Settings.
   The Global Connection Settings dialog box is displayed.
3. Click the Session tab and configure the following options:
   • Settings common to all session—Select the check boxes to enable options that are applied to all sessions. The available options are:
     • Launch only once—Select the check box when you want the session to be launched only once simultaneously.
     • Re-connect after disconnect—Select the check box when you want the session to launch again after the connection is disconnected.
     • Mount disks as read-only—Select the check box when you want to disable write access for storage disks.
     • Enable Imprivata VC—Select the check box when you want the Imprivata VC to be redirected to the remote session. If this option is not selected, RFIDEAS or Fingerprint reader can be redirected into the remote session.
   • Auto connect to local devices—Select the check boxes to automatically connect to local devices, such as printers, serials, smart cards, audio devices, and disks at system startup.

     If you want to use the Disks option to connect to sessions automatically, ensure that:

     • More than one disk can be used simultaneously. However, the maximum number of USB drives including different subareas is 12.
     • You save all data and sign off from the session before removing the USB drive.
   • USB device redirection—Select this check box to allow USB devices to be redirected to the remote session. The available options are:
     • Exclude disk devices—Select the check box when you do not want disk devices to be redirected to the remote session.
     • Exclude printer devices—Select the check box when you do not want printer devices to be redirected to the remote session.
     • Exclude audio devices—Select the check box when you do not want audio devices to be redirected to the remote session.
     • Exclude video devices—Select the check box when you do not want video devices to be redirected to the remote session.
4. Click the ICA tab, and do the following:
   1. Select the check boxes to enable the options that are applied to all sessions. The available options are:
      • Seamless window mode—Select this check box when you want to launch applications and desktops seamlessly.
      • Desktop with fullscreen mode—Select this check box when you want to launch the desktop session in fullscreen.
      • Enable HDX/MMR—Select the check box when you want to enable the Multimedia Redirection feature. When this option is enabled, the audio and video is rendered on the endpoint device instead of the server.
      • Enable session reliability—Select the check box when you want the session to remain active when the network connection is unstable.
      • Enable UDP audio—Select the check box when you want the Citrix connections to use audio over User Datagram Protocol (UDP).
   2. From the Audio Quality drop-down list, select an audio quality that is optimized for your connection.
5. Click the Horizon tab, and select the check boxes to enable the options that are applied to all sessions. The available options are:
   • Allow H.264 decoding—Select the check box when you want to enable the H.264 decoding in Horizon Client. Enabling this option improves the performance of high-end applications. H.264 is disabled by default.
   • Allow High Color Accuracy—Select the check box when you want to allow Horizon Client to use a superior color fidelity when H.264 decoding is enabled.
   • Allow High Efficiency Video Decoding—Select the check box to enable High Efficiency Video Coding (HEVC). For more information, see High Efficiency Video Coding
     NOTE:HEVC in Blast Extreme requires both ESXi hosts that supports the virtual desktops, and RDSH servers to have NVIDIA Tesla or newer graphics cards to offload its encoding. HEVC does not work with only ESXi CPU encoding. If there are no supported graphics cards present, the H.264 or JPEG/PNG encoding is used.
6. Click the RDP tab, and do the following:
   1. Select the check boxes to enable the options that are applied to all sessions. The available options are:
      • Force Span—Select the check box when you want to span the session horizontally across two displays. This option enables you to use two displays as one large display.
      • Record from Local—Select the check box when you want to enable recording from a local microphone.
      • Enable NLA—Select the checkbox when you want to verify users before connecting to an RDP direct connection.
   2. In the Desktop Scale Factor box, enter the DPI value in percentage. This option enables you to define the desktop DPI remotely. The Desktop Scale Factor is only applicable for the RDP connection. Setting this option does not impact the display scale of the thin client locally. The DPI range is 100–500. If you enter a nonnumeric character, the value is automatically set to 100. If you enter a value less than 100, the value is automatically set to 100. If you enter a value higher than 500, the value is automatically set to 500.
   3. Audio Playback option determines the audio playback mode and works for the sessions that are published through the broker.
7. Click OK to save your settings.