Devon IT Terminal Operating System (DeTOS) Dell Edition Administration Manual
Notes, Cautions, and Warnings NOTE: A NOTE indicates important information that helps you make better use of your computer. CAUTION: A CAUTION indicates potential damage to hardware or loss of data if instructions are not followed. WARNING: A WARNING indicates a potential for property damage, personal injury, or death. ______________ Information in this publication is subject to change without notice. © 2012 Dell Inc. All rights reserved.
Contents Introduction ........................................................................................6 What is DeTOS?.......................................................................................6 DeTOS Features ......................................................................................6 DeTOS Installation ...................................................................................7 Getting Started ........................................................................
Input/Time .............................................................................................. 20 Local Storage ......................................................................................... 21 Management .......................................................................................... 23 Network .................................................................................................. 25 Printer Settings ................................................................
Kaviza .................................................................................................... 63 Getting Help......................................................................................64 Contacting Dell .......................................................................................
1 1 Introduction What is DeTOS? Devon IT Terminal Operating System (DeTOS) Dell Edition is an embedded Thin Client Operating System designed to be simple, secure, and centrally manageable. DeTOS can be used to access hosted desktops using Microsoft Remote Desktop Services, VMware View, Citrix XenApp or XenDesktop, webbased applications, and more. DeTOS Features Simple-Configuring a session out of the box is quick and painless using the DeTOS intuitive web based control panel.
Echo allows individual profiles for different users, including specific Connections, Thin Client Settings, Passwords, and Customizable Desktop Icons. Echo allows you to update the thin client’s embedded OS. Updates can be scheduled to happen outside of production hours, for example over the weekend. DeTOS Installation No installation is required for customers who have purchased DeTOS based thin clients from Dell. Your thin client already contains a factory installed DeTOS operating system.
2 2 Getting Started After the initial bootup, or when booting up after having selected the Reset to Factory Settings, your thin client will ask if you wish to run as a Devon Zero™ client, or as a thin client console running DeTOS. If running in Devon Zero™ mode, see the section titled “Devon Zero™” in the “Advanced Options” chapter to continue. If you chose to operate your thin client using DeTOS instead, you will be shown the DeTOS desktop and taskbar.
Along the bottom of the Control Panel is a row of status messages. These messages include the DeTOS build number, the terminal's current IP address, and a Thin Client Management Connection Indicator. DeTOS default factory setting is DHCP. If you have a DHCP server on your network, the status bar should show the leased IP address. If you want the thin client to use a fixed IP address please refer to this guide's network section.
The Management section, found under the Control Panel, allows you to configure the behavior of this splash screen. Configuration options include: Setting the terminal to Managed or Unmanaged modes.
System Settings - These are the display, sound, keyboard, mouse, printer and date/time configurations for your terminal. Also under the System section is the ability to set an administrative password for the control panel and change the local storage mode. Network Tools The toolbar along the top of the Control Panel window contains a button named Network Tools. Clicking this button will open a separate, smaller window that provides you with current network status and useful diagnostic programs.
3. If there is an error in the delivery to the destination, the ping command displays an error message. Otherwise, replies will continuously display for each packet successfully sent and received. 4. Press the Stop button to terminate the ping loop. Echo Agent System Information Echo Management- Displays the current status and information of the Echo Management server to which your thin client is connected. Management Status-Displays when the thin client is being managed by an Echo server.
Operating System-Displays the name of the image or operating system that is in use. Processor-Displays the processor that the thin client is using. Memory-Displays the total internal memory of the thin client. DOM Size-Displays the total storage capacity size of the thin client. Hardware Model-Displays the name of the thin client in use.
3 3 Persistence Persistence, within the scope of thin client computing, refers to the continuing existence of connections and settings after a terminal has been rebooted. Default Behavior By default, or after resetting your terminal to default factory setting, DeTOS is set to persistent mode. This means that any configuration change you make will persist across reboots.
Strategy #2: Allow Configurations to be Stored Locally on the Thin Client The second approach for achieving persistence is to allocate a specific area of the local DOM for reading and writing system settings and connections. DeTOS allows for even greater flexibility by offering two variations of this strategy: Enable Local Storage-While running in this mode, DeTOS will write to the local DOM each and every time configurations are added, deleted or modified under the Control Panel.
Case 1: “I do not want any users to mess up the thin client’s configuration. I am currently using, or plan to use, Devon IT Echo Management Console Dell Edition to centrally manage my thin client.” Solution: You will be utilizing strategy #1, as described earlier. Choose the No Local Storage option on the thin client and make sure you have an Echo server properly configured and accessible on your LAN.
4 4 System Settings Display Settings Strategy #1: Maintain Profiles via Remote Management Server This section describes the display options available for a single monitor attached to a terminal. 1 From the DeTOS desktop, select DeTOSControl Panel. 2 Click the Display icon on the left-hand side of the Control Panel, under System Settings.
Color Depth-All supported color depths for your monitor will be listed in this dropdown box. Enable Screen Blanking-Checking this box will reveal two timeout values for screen blanking and suspend time. Once you are finished, press the Apply button for the changes to take effect. If you selected Auto-Detect for the screen resolution, then the change in resolution will occur on next reboot. Otherwise, all other display changes will take effect immediately.
8 Click one of the monitor names from the list. This will open a configuration screen that contains Resolution, Position, Rotation, and Reflection properties for that specific monitor. Screen Resolution-Select the desired resolution from the dropdown list OR select Auto-detect to allow DeTOS to automatically choose the best resolution for the attached monitor.
Position Left of or Right of -If your monitors are positioned in a side-by-side arrangement, then you'll want to specify one of the monitors as being to the Left of or Right of the opposite monitor. Above or Below-If your monitors are positioned in a top and bottom arrangement, then you'll want to specify one of the monitors as being to the Above or Below the opposite monitor. Clone-Choosing the Clone option will cause the display to be duplicated on both monitors. (Also known as “Mirrored.
. Locale-English is the default locale setting. Switching to a new locale will, upon reboot, adjust the system locale and translate the user interface of the local DeTOS desktop to the selected language. Keyboard-USA is the default keyboard input setting. Switching to a new keyboard input will alter the keyboard mapping immediately after selecting Apply. Left-Handed Mouse-Select this checkbox if you are using a left-handed mouse and need to invert the right and left mouse buttons.
2 Click the Local Storage icon on the left-hand side of the Control Panel under System. No Local Storage-Selecting this mode disables persistence. The thin client becomes stateless and relies completely on the management server for all its configurations. Be sure to press the Apply button and then reboot the thin client for this mode to take effect.
Management Management Server Configuration During bootup, if the thin client cannot make contact with a Management Server, then a white splash screen will appear just prior to the DeTOS desktop loading. This screen contains a message saying Attempting to connect to Management Server. The splash screen will be displayed until successful contact is made with a management server, the cancel button is pressed, or the specified timeout (30 seconds by default) is reached.
Server Address-While in managed mode, the thin client will maintain contact with a management server named ws-broker. Use this field to specify a different hostname or IP address for your management server. Splash Screen – Timeout-Use this field to adjust the number of seconds the splash screen appears on the screen before it times-out and loads the DeTOS Desktop. Enter a value of 0 to bypass the screen altogether.
4 Enter a password in the password field and re-enter it to confirm your password. 5 Press the Apply button to save your password. NOTE: Once a system password is set, the user will be prompted for the password when they attempt to open the Control Panel. If the Cancel button is pressed or a user incorrectly types the password, then the Control Panel will open in a read-only mode. A small padlock icon will also appear along the bottom of the Control Panel window, indicating that edits are not allowed.
Alternatively, you can now access the connections available to you by utilizing the Network tray icon. To connect using the tray icon: 1 Right click on the Network tray icon in the lower left corner of the desktop. 2 Select the network desired from the list of available networks that is displayed. 3 Enter your password into the Password field in the popup that appears. 4 Click OK to connect.
7 To make any changes to the Host Name, or to add or edit your own DNS servers, edit the Hostname field in the Networks area found near the top of the window. Press Apply when finished to save. 8 When changing your Network settings, this may take 15-20 seconds, depending on your network speed, for your changes to take effect. This is normal and your thin client will NOT need to be rebooted for the changes to take effect.
ii. c. Select FileServer Properties. iii. Select the Drivers tab. This will display installed printer drivers. iv. Find the driver name of the printer you are using. The driver name that appears here must be entered into the Driver Name field exactly the same way – including spaces and proper case. For example, if the driver name on the server is reported as Lexmark E238, then you must type Lexmark E238 into the Driver Name field. Values are case sensitive.
5 5 Advanced Options Devon Zero™ Devon Zero™ is the new zero client configuration option for Dell Optiplex FX130 and Optiplex FX170 terminals that enables them to effortlessly connect to your server and begin operations right out of the box. NOTE: Only terminals installed with DeTOS are capable of running in Devon Zero™ mode. Zero Configuration Environment Setup Process The entire process of establishing a Devon Zero™ configuration environment is carried out through DNS.
6. Once the folder has been successfully created, copy your squashfs image into it. After the squashfs image has been placed in a share, it is necessary to enter the details for what sort of session the Devon Zero™ configuration will run. The DNS is configured to have a zone of “_ditzc” at the top level of the desired domain, which will have the zero configuration feature enabled. . In order to set up these details using DNS management: 1. Create a new domain in your DNS management named _ditzc. 2. 3.
4. Select the SRV Service Location file format and select Create Record. 5. 6. 7. 8. Write _host in the Service field. Set the Protocol as _image. Be sure to set the port to match the protocol used above. Enter the location of the host in the Host offering this service field.
9. Click OK. The DNS is further configured to have a zone of “_image” within the “_ditzc” zone which contains the following TXT records: _host – The host address of the server that contains the operating system image. _path – The absolute path to the operating system image on the server. _proto – The protocol used to access the server that contains the operating system.
_port – The port used to access the server that contains the operating system image. The protocol used to access the server can be one of the following options: http – The hypertext transport protocol. ftp – The file transfer protocol iscsi – the IP based SCSI transport protocol nfs – The network file system protocol. cifs – The common internet file system protocol. Devon Zero™ is able to run two types of remote sessions: RDP and ICA.
RDP – The value of “rdp” in the PROTO connection setting defines the session type as Remote Desktop Protocol. The connection settings of RDP_SERVER and RDP_PORT are extracted from the session record. ICA – The value of “ica” in the PROTO connection setting defines the session type as Citrix’s ICA protocol. The connection setting of PNA_URL is extracted from the session record. You must create a zone called _proto within the _image zone. To create this zone: 1.
3. 4. Name the file _proto in the Record Name field. In the text field, enter the protocol desired through which the image will be downloaded. 5. Click OK.
Setting up the _path zone is nearly the same process as creating the _proto zone. In order to create the _path zone: 1. 2. 3. 4. 5. Right click on the _image zone and select Create other new record. Select TXT under the Resource Record Type menu and click Create New Record. Name the file _path in the Record Name field. In the text field, enter the protocol desired through which the image will be downloaded. Click OK.
4. Once the desired value pairs have been entered, click OK to accept the changes. NOTE: You can only have one configuration for Devon Zero™ per domain. If you wish to apply different configurations to different units, you must create alternate configurations via subnets. Once the system administrator has established the zero configuration environment via DNS, any further management becomes unneeded.
Should it become necessary to convert a Dell Optiplex FX130 or FX170 from a Devon Zero™ based zero client back into a DeTOS based thin client, a USB reflash utility is available. Visit support.dell.com to download the USB re-flash utility tool for reinstalling the operating system for OptiPlex FX130 and OptiPlex FX170. Launch Terminal There may be times when you wish to open a Terminal window to run command-line tools only accessible from a Linux shell.
Viewing Current Network Interface Settings Type /sbin/ifconfig and press to display the status of the currently active network interfaces. The value of inet addr, in the eth0 group of statistics, is the currently assigned IP Address of your DeTOS terminal. If DHCP was used, this is the IP address that your terminal acquired during bootup. If you configured static network settings, then this address should match the value you entered in the IP Address field.
Export Config If you are working with a Dell Support Analyst to troubleshoot a problem on your terminal, you may be asked to send your terminal's Config file. You can easily export your own Config file by following these steps: 1. Plug a USB flash drive into the terminal. 2. Click the button found along the top of the Control Panel named Export Config. 3. The process only takes a few seconds. Once it is finished you will receive a message saying the export is finished and you may remove the flash drive.
4. A file named detosConfig.tar will now exist on the flash drive. This file contains important diagnostic information that can be analyzed by Dell Support and will help troubleshoot and solve issues you may be experiencing. ELO Touch Screen Support Upon connecting an ELO Touch Screen to your thin client you will be presented with a calibration screen on first boot to ensure your unit functions properly. There are two ways to calibrate your ELO Touch Screen device when attached to your thin client.
NOTE: If the calibration is inaccurate, the calibration tool will ask you to re-try the process until a more accurate reading is achieved. You can wait until calibration is achieved or press any key to cancel the dialog at any time. You will see your normal desktop screen once the Touch Screen is calibrated. Calibration – Option 2 The second method of calibrating the hardware can be found in the DeTOS Start Menu. Select Calibrate Touchscreen. You will see the gray calibration screen.
6 6 Connections Adding New Connections 1 From the DeTOS Desktop, select DeTOSControl Panel. 2 Click the icon you wish to create; it is listed under the Connections bar, on the left-hand side of the Control Panel. 3 The main window will split into two separate frames. The top frame will list all existing connections for this particular type or protocol. To add a new connection, click the plus [+] button. 4 You will be prompted to enter a name for this connection.
7 As you create connections in the Control Panel, icons for those sessions will appear on the desktop. Double-click the icon to launch that session. How to Rename or Delete Connections 1 From the DeTOS Desktop, select DeTOS Control Panel. 2 In the Control Panel, the top center panel lists your currently added connections in the Connections window. 3 Select the session type to view the list, and then select the specific name of the connection you want to edit. To Rename-Double-click the entry.
Citrix ICA The Citrix Receiver client in DeTOS allows you to connect to Citrix XenApp Servers (formerly known as Presentation Server). This Citrix client also contains the necessary plug-in used for connecting to XenDesktop via the thin client's local web browser. The Connection Section The first section displayed for a Citrix ICA session is Connection. This form panel will already be expanded for you. Server Location-Type in the IP address or hostname of your Citrix server.
Protocol-Select the appropriate protocol needed to connect to your Citrix Server. There are two methods for connecting to your Citrix Server: Server-To connect to the desktop of your Citrix Server, click the radio button called Server. Published Application-To connect to a published application on your Citrix Server, select the radio button called Published Application. Browse for Name-Mark the checkbox called Browse for Name. Then click the Browse button once.
The Options Section 1 Window Size-Select the type of window you want your ICA session to display in. Full screen-The ICA session will take up the entire display. Fixed Size-You may select fixed sized windows, such as 640x480, 800x600, and 1024-x768. Percentage Based-You may select a size based on the percentage of available desktop display, such as 25%, 50%, and 75%.
4 Citrix SLR (Speed Screen Latency Reduction) Options-Enabling the following two options are usually only needed when high latency is occurring or poor bandwidth conditions exist. Mouse Click Feedback-The mouse cursor will change to an hourglass as soon as a user performs a mouse click on an event and will wait for a response from the server before it changes back.
The Firewall Settings Section Use alternative address for firewall connection-Mark this checkbox if you need the ICA session to connect to the Citrix server's external IP address. The external address for the server is specified as the alternate address. Proxy Settings-If your Citrix environment utilizes a proxy server, then choose the appropriate type from the Proxy Type field. Enter the address of the proxy server and port number in the Proxy Address and Proxy Port fields, respectively.
The Application Section Application-Specifies the path of the application on the Citrix server to be automatically launched when the connection is made. This is an optional field. Working Directory-Specifies the working directory used for the application. Firefox Web Browser The following section describes the steps for configuring the local Firefox web browser on DeTOS. The General Section Start URL-Specifies the initial web page to appear when the browser is first launched.
Autostart-Enable this checkbox to automatically launch this session after the thin client completes its boot procedure. Auto Restart-Select Yes or Prompt to automatically restart the connection. Yes-Once the session is terminated, the session will automatically restart. There is no way for the user to stop it from occurring. Prompt- Once the session is terminated, the user will receive a YES/NO prompt asking them if they wish to reconnect to the session.
Use system proxy settings-This option allows you to use the proxy settings configured for your system. Manual proxy configuration-Choose this option if you have more than one proxy server and you would like to specify which server to use. Complete these fields: HTTP Proxy, HTTP Port, SOCKS Host, and SOCKS Port. Automatic proxy configuration-If you have a proxy configuration (.pac) file, use this field to specify the URL address to the .pac file.
inescapable Firefox session for end-users with Internet-ONLY access. The only way to leave the browser is to shut down the thin client. No Machines The following section describes the steps for configuring a No Machine connection on DeTOS. The General Section 1 Server Address-Enter the IP Address of your No Machine server. 2 Credentials-Enter the User Name and Password for your No Machine session. 3 Server Port-This is the port number needed to connect properly to the No Machine session.
Shadow-Attach to and shadow an already running X11 session to see the display or desktop share. Windows-Run an rDesktop session on a Windows Terminal Server. VNC-Run a VNC session on a particular VNC server. Depending on your selected session, another drop box may or may not appear requesting additional information. If launching a Unix session, you will have to confirm which Desktop to connect to. If you are launching a Windows session, you will need to supply an IP address and the Domain name.
VMware View The VMware View client allows you to connect to a VMware server, which in turn, provides the end-user with their own virtual desktop session. The following section describes the basic steps for configuring the View Client in DeTOS. 1 Server Address-Enter the Hostname or IP address of your VMware View Broker. 2 Credentials-Specify the User Name and Password of a user account you wish to log on as. 3 Domain-Specifies the domain to log on to.
select an available desktop at the time they connect to the VMware View server. 5 Autostart:-Enable this checkbox to automatically launch this session after the thin client completes its boot procedure. 6 Auto Restart: Select Yes or Prompt to automatically restart the connection. Yes-Once the session is terminated, the session will automatically restart. There is no way for the user to stop it from occurring.
X11 Connection The X11 client allows you to connect to an X11 server, which provides the user with their own virtual desktop session. The following section describes the basic steps for configuring the X11 connection in DeTOS. 1 Session Type-Choose from the single SSH App type or the XDMCP connection. 2 Server Address-Specify which IP address is the X11 server. 3 Credentials-Specify the User Name and Password of a user account you wish to log on as.
6 Autostart-Enable this checkbox to automatically launch this session after the thin client completes its boot procedure. 7 Auto Restart-Select Yes or Prompt to automatically restart the connection. Yes-Once the session is terminated, the session will automatically restart. There is no way for the user to stop it from occurring. Prompt-Once the session is terminated, the user will receive a YES/NO prompt asking them if they wish to reconnect to the session.
2 Server Name-Enter the hostname or IP address of the Windows Terminal Server. 3 User Name-Specifies the name of a user account to log in as. This is optional. 4 Domain-Specifies the domain to log on to. The Display Section Operate in full screen mode-The RDP session will take up your entire display and will not allow minimization. Operate in maximized window mode-This option will display the RDP session in a window within DeTOS.
The Local Resources Section Sound Redirection Options-By default, sound from the server will redirect to the local thin client. If you do not want sound to be sent to the local device, then select either the Do not play sound or Leave sound on the remote thin client radio buttons below Redirect sound to local device (selected by default). Enable Printer Redirection-Mark this checkbox to redirect printing to a printer attached the local terminal.
The Start a Program Section Program path and filename-Specifies the path of the application on the Terminal server to be automatically launched when the connection is made. This will launch the application in a window within DeTOS, not rDesktop. Working Directory-Specifies the working directory used for the application.
Connection Speed-Specifies the RDP Experience. As you change connection options in this dropdown box, associated behaviors in the checkboxes below will be selected or deselected accordingly. Enable bitmap caching-Enable caching of bitmaps to disk (persistent bitmap caching). Disable cursor from blinking-Indicates that cursor blinking should be disabled during the RDP session. Enable window manager's key bindings-By default rDesktop attempts to grab all keyboard input when it is in focus.
Kaviza Your thin client running DeTOS comes pre-configured with Java Web Start and Citrix that enables users to creation connections to Kaviza servers. Since the client does not reside natively on the thin client, you will need a web address that points to your kavizaclient.jnlp file. The General Section You will need the location of the JNLP (Java Network Launching Protocol) which resides on your remote Kaviza server. JNLP Location-Type in the appropriate location of the kavizaclient.jnlp file.
7 Getting Help Contacting Dell For customers in the United States, call 800-WWW-DELL (800-999-3355). Dell provides several online and telephone-based support and service options. Availability varies by country and product, and some services may not be available in your area. To contact Dell for sales, technical support, or customer service issues: 1 Visit support.dell.com.
