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User Manual
Appendix A
Client Configuration Settings
Settings for PC-Duo Clients are defined using the Client Configurator tool. This enables you to restrict the process of creating and administering profiles to central administrators. To open the Client Configurator, choose Programs, PC-Duo, Tools, Client Configurator in the Windows Start menu.
Connectivity
The Connectivity folder specifies the network transports with which Controls can connect to Clients. It also specifies the network protocol and security options for Clients that provide dial-in access for Controls on remote networks, and the Web Extension settings that enable the Client to act as a simple Web Server.
Use TCP/IP
Select this check box if you want to use the TCP/IP Windows Sockets protocol. This protocol is used in local and wide area networks, including the Internet. You may also need to specify a Port number.
Port
This port is used by the Control to communicate with Clients on TCP/IP. The default is port 5405, but you can configure Clients on your network to use a different port number if required. This can provide additional security, as any other Control users must know which port the Clients are using before they can be accessed. You can also specify the port number when Adding a new Client or connecting to a Client.
Select IP Address to Listen on
The default behavior is for the Client to listen for Control requests from all accessible networks. On a Firewall system, or any PCs that have more than one network card, the Client can be configured to use only one network. Select the appropriate IP address from this drop-down list.
Test
Click this button to check the configuration and version of the TCP/IP stack installed. The Windows Sockets version and current state are displayed.
Use IPX
Check this box to enable the IPX transport protocol. This protocol is most commonly used to network PCs in a Novell NetWare environment. It is routable and can be used on local and wide area networks.
Use NetBIOS
Check this box to enable the use of the NetBIOS transport. NetBIOS is a family of non-routed protocols which are normally only used on local area networks. Common examples of NetBIOS protocols are DECnet and NetBEUI. Select which of the available NetBIOS protocols should be used by choosing one or more Adapters.
Adapters
The various NetBIOS protocols are accessed through their Adapter Numbers. This list box contains the NetBIOS Adapters that have been detected in this PC. Select one or more Adapters that are to be used. Adapter numbers are not constant and vary according to the order of installation of drivers. Consequently, they vary from one PC to another and from one Client to the next.
Test
Click this button to determine which NetBIOS protocols are available on this PC.
Use HTTP
Select this check box to enable the HTTP protocol that is used to communicate with the Gateway.
Port
The Gateway normally listens for Clients and Controls on port number 3085. The value can be changed here.
Gateway Address
The Client can only register with one Gateway, using the IP address or domain name specified here. This must be or resolve to a fixed address that can be accessed directly by the Client.
Gateway Key
A Control can only access Clients through a Gateway when they are both using the same Gateway Key. Click the Set button to open the Security dialog to enter and encrypt a suitable Key.
- The Control stores further settings for individual Gateways in the Gateways Folder.
Click this button to check that the HTTP transport is working.
None
TCP/IP
This enables the Bridge on TCP/IP.
IPX
This enables the Bridge on IPX.
NetBIOS
This enables the Bridge on NetBIOS. You should also select a NetBIOS Adapter from the list below. The Bridge checks this Adapter when it starts up. The actual Adapter number used to access Clients is specified in the Control's Add a Remote Network: Details or Remote Network Properties dialogs.
Load Bridge on Startup
Select this check box to load the Bridge when the Client starts up. Clear the check box if you want to configure the Bridge but don't want the Client to load it, and thereby allocate the serial port, until it is required.
Inactivity Timeout
If defined, this setting configures the Bridge to disconnect after a period of inactivity (specified in minutes).
Dialback File
You can create and update a Dialback password file using these fields. Click Browse to locate an existing file or specify the name and directory for a new one. Click the Edit button to update the password list. The Contents of Bridge Password File dialog is displayed.
Modem
Select one of the installed modems from this drop-down list. If there are no modems installed, you can add one using Start, Settings, Control Panel, Modems.
Dual Channel Bonding
Select this check box to use both lines on an ISDN Terminal Adapter for the same Client-Control channel.
MSN (Multiple Subscriber Numbers)
ISDN lines can be used with more than one telephone or subscriber number. This field allows you to specify which numbers should be used to dial. Similarly, when a call is received, the telephone number is notified. Use this field to restrict responses to one or more specific telephone numbers.
Tickle Period
When otherwise idle, the Client sends keepalive or tickle packets to indicate that it is still talking to the Control. The period is specified in seconds. Use a value of 0 (zero) to disable tickle packets.
Configure Windows XP SP-2 Firewall
automaticallyWhen this check box is selected, the Client will automatically check the Windows XP Firewall configuration to ensure that it permits all installed PC-Duo programs to be accessed from the network.
Enable Web Extensions
Select this check box to enable Web Extensions support. The PC-Duo Client will listen for Internet Explorer Web Browser requests on the TCP/IP Port specified below.
Server Port
This field defines the port for incoming Web Browser requests. The Client will listen on this Port. The default port number is 80. This should not normally be changed.
Server Root Directory
This field contains the root directory for the Client's ActiveX Control, HTML, and graphics files. If left blank, the Client defaults to using the WEB subdirectory below its installation directory.
Security (Basic Mode)
The Security page in Basic Mode enables you to configure the standard security settings for a Client, such as Client and Configurator passwords, and the settings that are most commonly used to restrict Control access to the Client.
Client Name
Enter the Client name here. If you use an asterisk ( * ), the Client will use the PC's machine name or Computer Name.
Configurator Password
If a Configurator password is set, you will be prompted to enter the password before the Configurator will start. Click the Set button to encrypt a password.
Client Password
You can enter an encrypted Client password here, or click the Set button to encrypt a new password.
Client Security Key
If other logon settings permit access, the Control's Security Key setting must match this Key or the Connect request is rejected.
Quiet Mode
When this setting is selected, the Client's icon is not normally visible, either when idle or when a Control is Connected.
User Acknowledgement Required
Select this check box to enable User Acknowledgement. When a Control attempts to connect using this Profile, the local logged-on user will be prompted to accept or reject the connection.
Disable File Transfer
This check box prevents the Control from using File Transfer.
Disable Remote Program Execution
This check box prevents the Control from executing programs on the Client using the Client Menu, Execute at Client command. It does not prevent the Control from running programs under remote control.
Disable Remote Registry Access
This check box prevents the Control from accessing the Registry on the Client.
Watch Only
This prevents the Control from using Control or Share remote control access modes.
Disable Receive Show
Use this option to prevent Controls from Showing their screens to this Client.
Disable Remote Reboot
Use this option to prevent a Control from rebooting this Client (or logging it off on Windows NT) using the Client Menu, Reboot / Logout command.
- All other settings in Basic Mode are also available in Advanced Mode.
Security (Advanced Mode)
The Security folder specifies which users are able to access change and use this profile. The folder also contains pages that control the ability to log events transfer files and replay Control sessions, and that specify the access privileges of Control users who connect to Clients using this profile.
Usernames
This field is used to restrict access to one or more specific users. Click Change to view or edit the list. The default setting, an asterisk '*', allows any Control to connect, subject to any additional settings, such as NT Security.
Authenticate User and Password with NT
Select this check box to enable use of NT Security. Any Controls attempting to connect must enter a valid NT username and password. This is only available for Clients running on Windows NT, 2000, XP and 2003.
Restrict access to Members of the following Groups
You can restrict access to members one or more specific NT user Groups. Click Browse to view or edit this list.
Authenticate User and Password with Active Directory
Select this check box to enable use of Active Directory Security. Any Controls attempting to connect must enter a valid username and password. This is only available for Clients running on Windows NT, 2000, XP, and 2003.
Restrict access to Members of the following Groups
You can restrict access to members one or more user Groups defined within Active Directory. Click the browse button to view or edit this list.
Always Prompt for Username and Password
Select this check box to force all Control users to enter a username and password when they try to connect to this Client. This improves security by preventing a Control's saved username from being used.
Disable Watch
Watch mode enables the Control user to view the Client PC screen as its user works. Select this option to prevent Controls from accessing the Client in this mode.
Disable Share
Share mode enables the Control user and the Client user to interact with the Client PC at the same time. Select this option to prevent Controls from accessing the Client in this mode.
Disable Control
Control mode blocks input from Client users and gives the Control user exclusive access to the Client PC. Select this option to prevent Controls from accessing the Client in this mode.
Disable File Transfer
Prevents users from transferring files between the Control and the Client.
Disable Program Execution
Prevents Control users from running applications on Clients.
Disable Reboot
Prevents users from rebooting Clients during a Control session.
Disable Shutdown Client
Prevents Controls from shutting down the Client.
Disable Chat
Prevents users from taking part in Chat sessions.
Disable File Transfer when no NT User is Logged On
Prevents Control users from transferring files to and from Client PCs when no user is logged on (Clients running Windows NT, 2000, XP and 2003 only).
Disable Remote Command Prompt
Prevents Control users from running DOS commands on the Client using the Remote Command Prompt window.
Disable Blank Screen
Prevents Control users from blanking out the Client screen during a Control session.
Disable Ctrl-Alt-Del
Prevents Control users from sending Ctrl-Alt-Del Key stroke combination to the Client.
Disable Logoff
Prevents Control users from logging off Clients.
Disable Clipboard Access
Prevents Control users from accessing the Client's clipboard.
Ignore Messages
Prevents Clients from receiving messages sent by Controls.
Ignore Broadcast Messages
Prevents Clients from receiving broadcast messages sent by Controls.
Disable Print Capture
Prevents Control users from redirecting the Client's print outputs.
Disable Registry Access
Prevents Control users from editing the Client Registry
User Acknowledgement Required
Select this check box to enable User Acknowledgement. When a Control attempts to connect using this Client Profile, the local logged-on user will be prompted to accept or reject the connection.
...Except when no NT User is Logged On
This option is enabled when the User Acknowledgement check box is selected. It will not be possible for a local user to accept a connection when the Client is logged off if there is no-one there. If you want to permit access to logged off PCs, select this check box. If it is deselected, a Control will not be able to connect using this Client Profile.
Acknowledge Connection Attempts from other Controls
When this check box is selected, an acknowledgement dialog will be displayed on the Client's screen when another Control attempts to connect. This allows the connected Control or the local user to decide whether or not to accept the new connection.
Acknowledge Connection Timeout
Values in the range 0-255 seconds can be specified, where 0 = no timeout. The timeout starts when a Control or Script attempts to connect to the Client. If the Client user has not accepted or rejected the connection when the timeout expires, the User Acknowledgement dialog at the Client is closed and the Control or Script is informed that the connection was rejected.
Acknowledge Connection Display Text
The text entered here is displayed on the Client's screen when a Control attempts to make a connection. Use the following tokens to customize the message displayed at the Client when a Control attempts to connect to it:
- $COMPUTERNAME$ displays the Control PC's computer name
- $FULLNAME$ displays the Control user's full name (Windows NT and above only)
- $LOGINNAME$ displays the Control PC's logged on username
- $USERDOMAIN$ displays the Control user's network domain
Acknowledge switching to view mode or higher
Select a level to prompt the Client user to acknowledge a change in the level of remote control access such as from Watch to Share Mode or Share to Control Mode. Select None to disable the feature.
Security Key
If the other logon settings permit access, the Control's Security Key setting must match this Key or the Connect request will be rejected.
Allow Connections from these Control Machines
The default behavior of the Client is to permit connection attempts from Controls regardless of their network addresses. These fields allow you to restrict access to Controls with specific IP (TCP/IP) or IPX addresses. This is not possible on NetBIOS networks, as they operate in a different way.
- TCP/IP Enter any valid IP addresses. It is also possible to specify a range of IP addresses using the format 90.0.0.12-25
- IPX Enter any valid IPX addresses.
Force Controls to use Encryption
Select this check box and choose a minimum level of encryption from the list to force data encryption to be used whenever a Control connects to this Client. If the Control is using a higher-level encryption algorithm that is also supported by the Client, then that encryption method will be used. If the Control does not support the same level of encryption, the connection attempt will be rejected. Therefore, encryption will always be at least as strong as the level specified here.
Allow more than one Control to connect at a time
Select this check box to allow multiple Controls to connect to this Client at the same time.
These options determine how the Client will behave if the Control connected while it was logged off, but disconnected while logged on. The settings are ignored if the Control connected while the Client was already logged on.
Lock the Workstation if not initially logged on (NT)
Select this check box if you want the Client to lock the workstation.
Logoff if not initially logged on
Select this check box if you want the Client to log the current user off on Windows NT and above.
Restart if not initially logged on
Use this option to force Windows 95, 98 or ME Clients to reboot when the Control disconnects.
Logoff if user has changed
If the logged-on user has changed during a remote control session, the Client logs off when the Control disconnects.
Disconnect Display Text
Displays a user-configurable message at the Client when a Control disconnects from it. You can use the following tokens to customize the message:
- $COMPUTERNAME$ displays the Control PC's computer name
- $FULLNAME$ displays the Control user's full name (Windows NT and above only)
- $LOGINNAME$ displays the Control PC's logged on username
- $USERDOMAIN$ displays the Control user's network domain
Configurator Password
If a Configurator password is set, you will be prompted to enter the password before the Configurator will start. Click the Set button to set a Configurator password.
Authenticate User and Password with NT
Select this check box to enable use of NT Security. Any user attempting to configure this Client must enter the username and password of a valid NT account which has been granted the "Act as part of the operating system" right.
Restrict access to Members of the following Groups
You can restrict access to members one or more NT user Groups. Click Browse to view or edit this list.
Disable File Transfer
This check box disables File Transfer when this Client Profile is used.
Disable File Transfer when no NT user is Logged On
The Public when Logged Off feature of older versions prevented a Control user from opening the File Transfer window while a Client was logged off. This feature is preserved in this check box. If it is deselected, a Control user that is permitted to connect to this Client while it is logged off will be permitted to use File Transfer or File Distribution functions.
Impersonate Logged-on NT User when transferring files
The default behavior is for the Client to use the logon credentials that were supplied by the Control user. However, this may interfere with the current logged-on user. Conversely, this can prevent the Control user from accessing the Client's mapped network drives. If either of these problems occur, select this check box to configure the Client to use the local user's credentials instead of the Control's.
Access Rights to Files and Directories
This list contains a list of files or directories, together with any access controls that have been applied. Click Add to add a new entry to the access control list. Highlight an existing entry and click Edit to edit it, or Delete to delete it.
Record Replay Files
Select this check box to enable replay recording.
Prefix Files with Client Name
Select this check box when Clients record to a shared location such as a file server. The Replay file names will be based on the Clients' names followed by the starting date and time.
In Directory
This field contains the path to the replay files directory. This can be in a secure area on a file server. Click the Browse button to locate the correct location.
As User
If any username or password are required, they are entered here. Click the Set button to enter the details in the correct format.
Enable Logging
Select this check box to enable Client event logging. The Client logs events such as startup, connect attempts, and file transfers.
Log to NT Event Log
On Windows NT, the default behavior is to add entries to the Event Log. Client startup is logged to the System Event Log, while more general events are logged to the Application Event Log.
Log to File
All Clients can also record events in a log file. Primary and Secondary Log File names and locations can be specified. These files can be located on a secure file server. If the Primary Log File cannot be accessed, the Secondary Log File will be used. Enable this option and enter the log file name or names here or click Browse to locate existing directories or files. Use the Set button to specify a username and password if these are required to access a remote location.
You can use tokens in the log file names, so that the file names are specific to a Client, to a date, or both. When many Clients are logging to a common location, this allows log files to be identified more easily.
Append to Log File
When this check box is selected, the Client will append each event to the log file. This can make the log file quite large when the Client has been running for some time. Deselect this check box if you want the Client to overwrite the log file when it starts up.
Reject Connection if no Log Server available
Select this check box if you want the Client to reject any connection attempt if the Primary and Secondary Log Servers are not accessible.
Only Log while Connected
This setting restricts the Client's log file entries to those related to remote control sessions. Unrelated events such as startup and shutdown are not logged if this check box is selected.
Remote Control
The Remote Control folder specifies how the Client can be viewed and whether the Control screen can be displayed on Clients. It also enables you to configure volume levels for Audio Chats.
Send Physical Fonts
The Windows Client normally sends text as font settings plus characters. The Control uses the font characteristics to find a close match for its display. However, this may not be possible if the Client is using a TrueType font that is not available on the Control. Use this setting to send text as Glyphs or shapes rather than characters.
Enable Screen Scrape
Select this check box to prevent the PC-Duo Client from using the normal GDI intercept method of viewing the screen contents. It will operate in Screen Scrape mode, reading the display contents from the adapter memory.
This method is less invasive than the intercept method, but it is also less efficient and has a considerable effect on remote control performance. It can provide a way to view a Client that would otherwise crash when the intercept driver is used.
Cache Size
This is the amount of dynamic memory that the Client can use to store display objects such as bitmaps. Use a larger value to improve performance when you are viewing applications which use bitmaps.
Max Colour Depth
This setting can improve performance over slow network links. It is used to reduce the color depth that the Client sends to the Control. If used, this process will lose color information.
Inactivity Timeout
Specifying a non-zero timeout (in minutes) will force the Client to disconnect a Control if it is connected but does nothing for some time. A zero timeout disables this feature.
- Because some DVD players and Direct Draw programs are incompatible with the mirror driver that the Client uses to intercept display output on Windows 2000, XP, and .NET, the Client Setup disables DVD playback and the use of Direct 3D software by default.
Use these settings only if it is essential to play DVDs or run Direct 3D programs.Except while viewed
This check box allows DVD players and Direct 3D software to operate normally unless the PC-Duo Client is actually being viewed by a Control.
Except while connected
This check box allows DVD players and Direct 3D software to operate normally unless the PC-Duo Client is connected to a Control.
Disable Receive Show
Select this option to prevent the Client from receiving a Show from a Control.
Show to a Window
This option enables Show to a Window on the Client, rather than full-screen.
Scale to Fit
Select this option to scale the Show to fit in the available space (either full-screen or in a window).
Scrollbars
This option enables scroll bars in the Show window, allowing the Client user to adjust the view.
Autoscroll Speed
This slider controls the rate at which the Client will autoscroll the Control's screen during a Show.
Scroll Delay
This slider controls how long the Client will wait when the Control's mouse goes off-screen during a Show before it starts auto scrolling the Show display.
Threshold
Use this slider to control the lowest sound level that is sent through.
- If this is set too high, the user at the other end will hear broken up sounds. If it is set too low, more data than strictly necessary will be transferred, reducing remote control performance.
Microphone
Use this slider to control the level of voice input.
Speaker
Use this slider to control the level of speaker output.
Wave
Use this slider to control the level of local Sounds (Wave output).
Test
Select this check box to test the microphone level.
Client Interface
The Client Interface folder controls the behavior of the Client application on the PC where it is installed. It also enables you to specify the messages displayed on Clients when a Control connects to them, and when the Client PCs are being viewed by a Control.
Disable Request Help
This setting disables the Client's Commands Menu, Request Help command.
Disable Call Control
This setting disables the Client's Commands Menu, Call Control command.
Disable Disconnect
This setting disables the Client's Commands Menu, Disconnect command.
Disable Chat
This setting disables the Client's Commands Menu, Chat command.
Icon in System Tray
When selected, this check box transfers the minimized Client toolbar button into Windows' System Tray.
Always on Top
Select this check box if you want the Client's icon to be visible, on top of any other program windows, at all times.
Hide When Idle
When this is selected, the Client's icon is not visible unless a Control is connected.
Quiet Mode
When this setting is selected, the Client's icon is not normally visible, either when idle or when a Control is Connected.
Silent Mode
This setting prevents the screen flash that occurs when a Control starts viewing the Client.
Use internal speaker for Beep
When this check box is selected, the Client will use the PC's speaker to make Beeps. Otherwise, it will use a sound card, if one is present.
Beep while being Viewed
If you need to alert the Client user to the presence of a viewing Control, enter a non-zero value here. The Client will make an audible beep every so often seconds.
Use URL
When this option is enabled, the Client's Request Help function will open the specified URL instead of performing the normal function. This allows the Client user to link to a Web-based problem reporting system.
For example, to link to PC-Duo Enterprise HelpDesk, enter:
http://server/helpdesk/logon.asp?View=HelpDesk%2FReport%20IssueAvailable Controls
This list shows the names, addresses and transports of known Controls.
Disable connections from Help Request Dialog
This setting disables the Client's Help Request, Show Controls button.
Always show Controls in Help Request
This setting is equivalent to always clicking the Client's Help Request, Show Controls button.
Hotkeys for Request Help
The default Client Help Request Hotkeys combination is ALT+LSHIFT+RSHIFT. You can change the combination here by selecting different checkboxes.
In About Box
This message is displayed in the Client's Help, About dialog.
When Connected
This message is displayed while a Control is connected to the Client,
When Viewed
This message is displayed when the Control is viewing the Client's screen.
Profile Options
The Profile Options folder determines whether this Profile is used when a Control connects to the Client.
Disable this Profile when Logged On
Select this option to disable any access to the Client through this Profile when a user is logged on at the Client
User of this Profile has Priority over other (non-priority) Users
When you have shared access enabled, this option is used to force access to be given to this Control in preference to those permitted by other Profiles.
 Vector Networks http://www.vector-networks.com Voice: +44 (0) 1827 67333 Fax: +44 (0) 1827 67068 info@vector-networks.co.uk |
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