Installing and Configuring Support for Omnissa Horizon Virtual Desktops

To support Omnissa Horizon Virtual Desktop Access, Imprivata must connect to a Omnissa Horizon Connection Manager (Connection Manager) installed on the Omnissa Horizon server. You will need the URL of this server when configuring your Omnissa Horizon environment, and when configuring the Imprivata connection to the Omnissa Horizon server. See Step 4: Configure Imprivata's Connection to Omnissa Horizon.

To support Omnissa Horizon Virtual Desktop Access, copy the domain certificate for the Connection Manager and copy it to the endpoint computers.

Session persistence (roaming) is managed by your virtual environment, not Imprivata Virtual Desktop Access. If your virtual environment is configured correctly for session persistence, Imprivata Virtual Desktop Access seamlessly roams user sessions, on authentication, to the endpoint computers in your environment.

Before you configure Imprivata desktop roaming for Omnissa Horizon, review Imprivata Enterprise Access Management for SSO Supported Components or Imprivata Enterprise Access Management for MFA Supported Components to confirm your Omnissa Horizon agent and client versions are supported by Imprivata. An Imprivata Authentication Management license is required to enable desktop roaming.

Be sure you can connect to the virtual desktop before continuing.

Before you install the Imprivata agent on Omnissa Horizon VMs and endpoint computers, view the software listed in the Windows Control Panel > Add and Remove Programs:

• Verify that Omnissa Horizon agent is installed on all VMs.

• Verify that Omnissa Horizon Client is installed on all endpoint computers.

To install Omnissa Horizon and Imprivata to all VMs:

1. Install the Omnissa Horizon agent on one VM.

2. Install the Imprivata agent on the same VM.

3. Clone the VM for all the installations you require.

The Imprivata agent must be installed on each endpoint computer on which Omnissa Horizon Virtual Desktop Access will be used.

The installation can be pushed to groups of computers or installed on one computer at a time, depending on your organization's preferences. See Deploying the Imprivata Agent for instructions on installing agents. Choose the method that suits your environment.

Configure Imprivata's connection to the Omnissa Horizon server. To support Omnissa Horizon Virtual Desktop Access, Imprivata must connect to a Omnissa Horizon Connection Manager installed on the Omnissa Horizon server.

1. In the Imprivata Admin Console, go to the Computers menu > Virtual Desktops page > VMware Horizon – Desktops section.

2. Select Allow authentication from VMware Horizon clients.

3. Enter the URL of each Connection Manager that will support Imprivata.

4. Click Save.

Select the User Logon Format for Omnissa Horizon Authentication

By default, Enterprise Access Management uses the down-level logon name format (such as [DomainName]\UserName) for authentication when launching VMWare View applications.

To disable the use of the down-level logon name format and to enable the user principal name (UPN) format (such as UserName@example.com), create the DoNotUseUPN registry key with a Data Type of DWORD and a value of 0 in the following location:

• 64—bit computers: HKEY_LOCAL_MACHINE\SOFTWARE\SSOProvider\VDI\View

This is only applies to Imprivata environments configured and licensed for Authentication Management.

Create, configure, and assign a computer policy that automates endpoint computer access to Omnissa Horizon.

Endpoint computers and virtual desktops are assigned the Default Computer Policy unless:

• A different computer policy is manually assigned.

• A different computer policy is automatically assigned by computer policy assignment rules.

Review the Default Computer Policy settings to confirm that they are appropriate for your virtual desktop environment.

Step 5a: Create a Computer Policy for Endpoint Computers

1. In the Imprivata Admin Console, go to the Computers menu > Computer policies page.

   You can select an existing computer policy from the list, or make a copy of the Default Computer Policy as a starting point. If you want to edit an existing computer policy, click the existing computer policy name, and skip to step 5b.

2. To copy the Default Computer Policy, select Default Computer Policy , then click Copy.

3. Click Default Computer Policy (2).

4. Rename the computer policy in the Name field.

Step 5b: Configure the Computer Policy to Endpoint Computers

1. Go to the Virtual Desktops tab > VMware Horizon section.

2. Select Automate access to VMware Horizon to have Imprivata automatically handle login behavior for Omnissa Horizon endpoint computers.

3. Choose from the following options:

   • Prompt the user only if they have multiple desktops

   • Always prompt the user to choose their desktop

   NOTE: If you are configuring single-user computers, and a user is entitled to multiple desktops, you can prevent them from having to choose which one to launch by configuring a registry key (DesktopToAutoLaunch) on the Windows endpoint. For more information, see Step 7: (Optional) Override the Desktop Chooser.

4. You can control the behavior when an endpoint computer is locked. Under When a VMware Horizon endpoint is locked, choose one of the following:

5. • Keep the View client and user session active. This option preserves the user session. When a user logs back into this endpoint computer (or another endpoint computer with Omnissa Horizon enabled) their desktop and applications are preserved just as they were when this endpoint computer was locked.

   • Shutdown the VMware Horizon client and disconnect the user session. This option helps optimize resource consumption and minimizes the total number of active sessions in use in the enterprise. When a user logs back into this endpoint computer (or another endpoint computer with Omnissa Horizon enabled) their desktop will relaunch.

5. Select the Connection Managers that the endpoint computers should use.

   NOTE: To update the list of available Connection Managers, click Add or modify Connection Managers.

6. Click Save.

Step 5c: Assign the Computer Policy to Endpoint Computers

Assign the computer policy you just created to endpoint computers.

Manually Assigning the Computer Policy

1. In the Imprivata Admin Console, go to the Computers menu > Computers page.

2. Select the computers to which you want to assign the computer policy. You can use Search for Computers to enter search criteria.

3. Select Apply Policy.

4. Select Choose a policy for selected computers, choose the policy from the list, and then click Apply Policy.

Automatically Assigning the Computer Policy

Computer policy assignment rules let you assign a policy to existing endpoint computers and make sure that the policy is automatically assigned to endpoint computers that are added later.

To use a rule to assign the computer policy:

1. In the Imprivata Admin Console, go to the Computers menu > Computer policy assignment page.

2. Click Add new rule.

3. Name the rule and select the assignment criteria.

4. Select the policy you created and click Save.

Create and apply a user policy that automates user access to Omnissa Horizon.

Step 6a: Create a User Policy

1. In the Imprivata Admin Console, go to the Users menu > User policies page.

   You can select an existing user policy from the list, or make a copy of the Default User Policy as a starting point. If you want to edit an existing user policy, click the existing user policy name, and skip to step 5.

2. To copy the Default User Policy, select Default User Policy , then click Copy.

3. Click Default User Policy (2).

4. Rename the user policy in the Policy Name field.

5. Click the Virtual Desktops tab.

6. Select Enable virtual desktop automation.

7. Select Automate access to full VDI desktops to have Imprivata automatically handle login behavior for Omnissa Horizon endpoint computers. Roaming users with this policy will have streamlined access to the Omnissa Horizon environment.

8. Click Save.

Step 6b: Apply a User Policy

1. To apply a user policy to other users, in the Imprivata Admin Console, go to the Users menu > Users page.

2. Select the users to which you want to apply the user policy.

   You can view additional pages of the Users list without losing your selections. The users you have selected are tracked and displayed on a counter at the top of the page.

   BEST PRACTICE: To select multiple users more efficiently, use the Search for Users tool at the top of the Users page. Search for Users offers several search parameters for refining your results.

3. Click Apply Policy. The Apply Policy dialog box opens.

4. Choose the policy from the drop-down list, then click OK.

By default, Imprivata ProveID Embedded does not display the VMware desktop menu bar (shade bar). You can use the ProveID Embedded configuration editor to modify the behavior.

To run the configuration editor, open a terminal and enter the following:

/usr/lib/imprivata/runtime/bin/configuration-editor

The following example configures the thin client to display the menu bar:

usr/lib/imprivata/run/bin/configuration-editor menubar

The following example configures thin client to hide the menu bar:

usr/lib/imprivata/run/bin/configuration-editor nomenubar

The Omnissa Horizon virtual desktop does not by default enable devices plugged into a USB port on a Windows endpoint computer.

Redirect USB Devices

Create one of the following registry keys with a Data Type of DWORD and a value of 1:

• connectUSBOnInsert — Connects a USB device to the foreground desktop when the device is plugged in.

• connectUSBOnStartup — Connects all USB devices to a desktop when it is launched.

Add the key in one of the following locations:

• 64—bit computers: \HKEY_LOCAL_MACHINE\SOFTWARE\SSOProvider\VDI\View

The Imprivata USB Receiver for Hands Free Authentication for Imprivata Confirm ID is not enabled by default on Omnissa Horizon View virtual desktops.

1. Open the Registry Editor.

2. Navigate to the appropriate location:

• 64-bit computers: HKEY_LOCAL_MACHINE\SOFTWARE\SSOProvider\DeviceManager

3. Locate RedirectionSupported and change the Value to 1.

4. Create the RemoteOnly registry key with a Data Type of DWORD and a Value of 1.

To enable detection of proximity card events by the Imprivata agent on the Omnissa Horizon virtual desktop, create the RedirectionSupported registry key with a Data Type of DWORD and a value of 1:

\HKLM\Software\SSOProvider\DeviceManager

To prevent simultaneous RF IDeas reader access by two Imprivata processes, create the RemoteOnly registry key with a Data Type of DWORD and a value of 1:

\HKLM\Software\SSOProvider\DeviceManager

If you have enabled the UPN format for authentication, Imprivata OneSign supports additional registry-based configuration for launching Omnissa Horizon to better support UPN format credentials. These registry values allow more fine-grained control of the launch process:

• UseInteractive — if set to 1, Omnissa Horizon does not use the –nonInteractive option on the command line. If set to 0, it is on the command line.

• DisableDomainName — if set to 1, Omnissa Horizon will not issue the –domainName option on the command line. If set to 0, it will appear on the command line.

• useDomainName — a string value that allows the customer to specify an alternate domain name. The Imprivata-derived domain name is used by default.

Set the registry keys with a Data Type of DWORD:

\HKEY_LOCAL_MACHINE\SOFTWARE\SSOProvider\VDI\View

Configuration Options

Set the following registry keys as indicated below to configure the presentation of the Omnissa Horizon virtual desktop. These configurations should fully automate the connection process, unless the user has multiple entitlements.

Virtual Desktop with No Omnissa Horizon Interface or Toolbar

With this configuration the Omnissa Horizon user interface and toolbar will not be displayed on the virtual desktop:

• UseInteractive = 1

• DisableDomainName = 0

• DomainName = Your alternate domain name, if needed.

Virtual Desktop Displays Omnissa Horizon Interface and Toolbar

With this configuration the Omnissa Horizon user interface and toolbar will be displayed on the virtual desktop:

• UseInteractive = 1

• DisableDomainName = 0

• DomainName = Your alternate domain name, if needed.

The desktop toolbar in the virtual desktop will be displayed unless a Group Policy Object has removed it.

If users are prompted to log into the virtual desktop after successfully logging into the endpoint computer, verify that the VMware client sessions are enabled for SSO.

To verify that SSO is enabled:

1. Log into the Omnissa Horizon View Administrator console.

2. Click View Configuration > Global Settings.

3. Go to the General section and verify that Single sign-on (SSO) is Enabled.

4. If it is set to Disabled, click Edit, select Enabled, and then click OK.

In a specific situation, multiple instances of a Omnissa Horizon client launch for Omnissa Horizon virtual desktops on Windows endpoints. End-users may or may not notice the icons for the multiple instances in the right corner of the Windows task bar on the endpoints.

This situation occurs if multiple Omnissa Horizon Connection Managers are specified in the computer policy assigned to the endpoint computers. This specification occurs in Step 5b: Configure the Computer Policy to Endpoint Computers.

If this problem occurs, implement the following fix. Create the AutoBalancerMode Windows registry key with a Data Type of DWORD on the endpoint computers. This key can enable automatic load balancing among the multiple Connection Managers specified in the computer policy.

Create the key at this location: HKEY_LOCAL_MACHINE\SOFTWARE\SSOProvider\VDI\AutoBalancerMode

Specify one of these values for the DWORD:

• 2: Randomly pick a Connection Manager in the computer policy and launch one instance of a Horizon Client for it.

• 1: Pick the first available Connection Manager in the computer policy and launch one instance of a Horizon Client for it.

This DWORD value is also available, but it will not fix the problem:

• 0 (default, disabled): No load balancing. For each Connection Manager in the computer policy, launch a Horizon Client instance.

You can display your corporate logo on Imprivata login and enrollment screens for Imprivata single-user and kiosk workstations. See Branding the Login and Self-Service Experience.