2.4 Configuring and Launching Remote Management

2.4.1 Installing ZCC Helper

For more information, see Installing ZCC Helper in the ZENworks Control Center Reference.

2.4.2 Pre-requisites for Remote Management on Linux devices

The following RPM packages should be installed after installing the ZCC Helper:

You need to install the following 64-bit packages. The packages can be installed using the OS installation CD:

  • libXaw8

  • libgnomeui

  • libjpeg62

After installing the RPM packages, you might need to manually create the below symbolic links:

  • libXaw8.so.8 for libXaw8.so.8.0.0

  • libjpeg.so.62 for libjpeg.so.62.0.0

  • libXmu.so.6 for libXmu.so.6.2.0

  • libXt.so.6 for libXt.so.6.0.0

  • libXpm.so.4 for libXmu.so.6.2.0

  • libXp.so.6 for libXp.so.6.2.0

  • libxcb-xlib.so.0 for libxcb-xlib.so.0.0.0

2.4.3 Installing ZCC Helper in a Terminal Server or in a Citrix XENapp Environment

To install ZCC Helper in a common location for all users in a Terminal Server or in a Citrix XENapp environment, you need to install the all users MSI. For more information, see Installing ZCC Helper in the ZENworks Control Center Reference.

2.4.4 Options for Launching a Remote Management Operation

When you launch a remote management operation from the command line, you can specify options to control the behavior of the remote session. For example, specifying the remotecontrol option launches a Remote Control operation on the device and specifying the notoolbar option hides the toolbar of the viewing window.

Remote Management uses certain options internally when you launch a remote management operation on a device. For example, the zenrights option specifies that the authentication scheme is ZENworks Rights Authentication. You must not specify these internal options when you use the command line to launch a remote management operation on a device. For more information on the options that are internally used, see Internal Options for Launching a Remote Operation.

Review the following sections for more information on the remote management options:

Command Line Options for Launching a Remote Operation

Use the following command line options to control a remote operation:

Table 2-1 Command Line Options for Launching a Remote Operation

Command Line Option

Parameter

Description

listen

port

Enables the listener to listen to the remote session requests on the port specified. By default, the port is 5550.

restricted

 

Hides the toolbar and system menu.

viewonly

 

Launches a Remote View operation on the managed device.

remotecontrol

 

Launches a Remote Control operation on the managed device.

ftponly

 

Launches a File Transfer operation on the managed device.

remoteexecute

 

Launches a Remote Execute operation on the managed device.

diagnostics

appname

Launches a Remote Diagnostics operation on the managed device. If the appname parameter is specified, then that application is launched on the managed device.

filecompressionlevel

level

Provides means of optimizing the file compression process for better speed or better compression during a file transfer operation. The compression level can vary from 0 to 9:

  • 0 indicates no compression

  • 1 indicates best speed

  • 9 indicates best compression

If the compression level is not specified, the default compression level of 6, which is optimized for both speed and compression, is used.

noencrypt

 

Launches the remote session in an unencrypted mode.

fullscreen

 

Launches a remote operation in the full screen mode on the managed device.

notoolbar

 

Hides the toolbar of the viewing window.

exclusive

 

Launches the remote session in an exclusive mode.

8bit

 

Specifies the color depth to be used to render the session data.

shared

 

Enables a shared connection, allowing you to share the desktop with other clients already using it. This option is True by default.

collaborate

 

Launches the remote session in a collaborative mode. This option is not yet supported on Linux.

noshared

 

Enables an unshared connection, which disconnects other connected clients or refuses your connection, depending on the server configuration.

skipauth31

 

Launches Remote operation on a Mac device. This option skips Novell authentication that is unavailable on a Mac device.

swapmouse

 

Swaps the mouse buttons.

nocursor

 

Displays only the managed device mouse pointer. The local mouse pointer is not displayed.

dotcursor

 

Displays the local mouse pointer as a dot. This option is true by default.

smalldotcursor

 

Displays the local mouse pointer as a small dot.

normalcursor

 

Displays the local mouse pointer in the default shape.

belldeiconify

 

Allows the transmission of a bell character, causing a beep at the viewer. This option also causes a minimized vncviewer to be maximized when the bell character is received.

emulate3

 

Users with a two-button mouse can emulate a middle button by pressing both buttons at once. This option is True by default

noemulate3

 

Does not emulate a three-button mouse.

nojpeg

 

Disables lossy JPEG compression. This is not recommended because the efficiency of the encoder might reduce. You might want to use this option if it is absolutely necessary to achieve a perfect image quality.

nocursorshape

 

Disables the cursor shape updates to handle remote cursor movements. Using the cursor shape updates decreases the delays with remote cursor movements, and can improve bandwidth usage dramatically.

noremotecursor

 

Does not show the remote cursor.

fitwindow

 

Hides the scroll bar of the viewing window.

scale

percentage

Zooms the viewing window to the percentage of scaling specified.

emulate3timeout

ms

Specifies the time-out for emulating a three-button mouse.

disableclipboard

 

Disables the copying of data into the clipboard.

delay

 

Renders a display area and waits for the specified time before retrieving the next update.

loglevel

n

Specifies the levels of information logging.

console

 

Logs information in a console window.

logfile

filename

Name of the log file where information is to be logged.

config

filename

Name of the configuration file to be used for loading predefined configuration settings.

key

filename

Name of the file where private key is stored. This key is used during an SSL handshake with the managed device.

IMPORTANT:The key and the cert options must be used together. If you use these options along with the nzrViewer command, then for security reasons you must disable the Allow connection when Remote Management Console does not have SSL certificate option in the security settings of the Remote Management policy.

cert

filename

Name of the file where the certificate corresponding to the private key is stored.

If the certificate contains Enhanced Key Usage section, then the section must contain Client Authentication (1.3.6.1.5.5.7.3.2)

NOTE:Microsoft Certificate Services provides a number of certificate templates for issuing a certificate. Some of the certificate templates, such as Web Server, might not have the OID specified by default. If such a certificate is provided during the launch of a remote session, the SSL handshake fails. Consequently, the remote session also fails. So, if you are using Microsoft Certificate Services for issuing a certificate, ensure that the certificate template specifies Client Authentication (1.3.6.1.5.5.7.3.2) in the Enhanced Key Usage section.

IMPORTANT:The key and the cert options must be used together. If you use these options along with the nzrViewer command, then for security reasons you must disable the Allow connection when Remote Management Console does not have SSL certificate option in the security settings of the Remote Management policy.

CAcert

filename

Name of the file where the root certificate is stored. This certificate is used to verify the managed device certificate during an SSL handshake.

encoding

encname

Specifies the desired encoding to be used for the session. The different types of encoding are Raw, CopyRect, RRE, CoRRE, Hextile, Zlib, and Tight.

compresslevel

n

Specifies the compression level to compress the remote session data from 0 to 9. Level 1 uses a minimum of CPU time and achieves weak compression ratios, and level 9 offers best compression but is slow in terms of CPU time consumption on the server side. Use high levels with very slow network connections, and low levels when working over high-speed LANs. We recommend that you do not use compression level 0.

quality

n

Specifies the JPEG quality level from 0 to 9. Quality level 0 denotes poor image quality but very impressive compression ratios, and level 9 offers very good image quality at lower compression ratios.

zenpasswd

 

Specifies that the authentication scheme to be used is ZENworks Password Authentication.

locale

 

Specifies the locale in which the resources are to be displayed. By default, English is used. The values for this option are: English, French, German, Spanish, Portuguese, Japanese, Italian, Chinese(Simplified), and Chinese(Traditional).

proxy

proxy_server

Specifies the DNS name or the IP address of the remote management proxy and the port number in one of the following formats:

  • IP address~~Port. For example 10.0.0.0~~5750.

  • IP address~Port. For example 10.0.0.0~50.

The default port for the proxy is 5750. This option is not yet supported on Linux.

Internal Options for Launching a Remote Operation

The following table lists the options that Remote Management uses internally. These options should not be used when you launch a remote management operation from the command line.

Table 2-2 Internal Options for Launching a Remote Operation

Option

Description

zenrights

Specifies ZENworks Rights Authentication as the authentication scheme.

pipe

Specifies authentication information.

2.4.5 ZENworks Remote Management Viewer Options

You can use the various options available in the Remote Management Viewer Options dialog box to edit either connection-specific options or global settings:

Connection Tab

The following options are available in the Connection tab:

Display: Use the options under Display to specify the client-side display settings:

  • Use the Scale - by option to reduce or enlarge the local copy of the remote desktop.

  • Select Full-screen mode if you want the Viewer to show only the remote desktop and not the local desktop, toolbar, and window decorations.

Restrictions: Use the options under Restrictions to disable certain protocol features:

  • Select View only (input ignored) to view the remote desktop but not control it remotely with your mouse and keyboard.

  • Select Disable clipboard transfer, if you do not want the Viewer to propagate local clipboard changes to the server and vice-versa.

  • Select Block mouse move events to avoid sending information about local mouse movements to the managed device. This can improve session performance.

Mouse: Use the Mouse options to specify the following mouse configuration details:

  • Select Emulate 3 buttons [with 2-button click], if you have two- button mouse but you want to emulate using the third button. If this option is enabled, pressing the left and right buttons at the same time is equivalent to pressing the middle button.

  • Select Swap mouse buttons 2 and 3 to swap the events generated by the second and third mouse buttons.The right mouse button usually generates button 2 events, and the middle mouse button is usually treated as button 3.

Globals Tab

The following options are available in the Globals tab:

Interface Options: Under Interface Options, specify how the Remote Management Viewer interface is displayed:

  • Select Show toolbars by default to show toolbars in desktop windows.

  • Select Warn before switching to full-screen mode, if you want the Remote Management Viewer to display a warning before switching to the full-screen mode. The warning tells users how to exit full-screen mode.

  • Use the Connections to remember field to specify the number of connections for the Viewer to remember.

  • Click Clear all to remove the list of past connections from the system registry. This also removes all corresponding connection settings.

Local cursor shape: The local mouse cursor and the remote pointer might have different locations on the screen. You can choose one of the following options to customize the shape of the local cursor for improved cursor tracking:

  • Select Dot cursor to show the local cursor position as a dot.

  • Select Small dot cursor to show the local cursor position as a smaller dot.

  • Select Normal arrow to show the local cursor position as an arrow cursor.

  • Select No local cursor if you do not want to show the local cursor position.

Listening Mode: Use this option for settings specific to the listening mode that is used for reverse server-to-client connections.

Use the Accept reverse VNC connections on TCP port list to indicate the port number.The default port number is 5500.

Logging: Use the following logging options to customize how the Viewer logs it’s activity in a text file:

  • Select Write log to a file to enable logging.

  • Select Browse to choose a location for the log file.

  • Use the Verbosity level list to specify how many details to write into the log file.

    The Level 0 causes the Viewer to log only the most important events. Level 12 produces the maximum debugging output.

Performance Tab

The following options are available in the Performance Tab:

Format and encodings: You can specify the following Format and Encodings options:

  • Select the appropriate graphics encoding from the Use encoding list.

    Encoding refers to how graphics are sent over the network. Encodings can differ depending on bandwidth and CPU usage. Use Hextile encoding on fast networks, and use Tight encoding over slow connections. Raw encoding means no compression at all.

  • Select Use 256 colors to minimize the amount of pixel data sent over the network.

  • Select Allow CopyRect encoding if you want to save bandwidth when a screen area on the server changes its position.

    CopyRect sends coordinates instead of pixel arrays. You should usually select this option.

  • Select Enable caching to cache remote desktop screen data on the local device. This improves session performance because repetitive screen information is not resent. The Viewer uses disk space on the local device to save screen information.

  • Select Update screen incrementally to control how information is displayed when the screen is refreshed.

    When the remote desktop is rendered locally at the start of the session or when a full screen refresh is requested, this setting determines whether the screen is shown gradually or all at once.This setting is especially useful on slow links as an indication that the connection is alive.

Compression: The following options are asvailable under Compression:

  • Select Custom compression level to specify a particular compression level instead of using server's default.

    The compression level ranges from level 1(Fast) to 9 (best). Higher compression levels result in greater compression ratios, but require more time to encode data. Use lower values on fast networks, and higher levels for slow connections.

    NOTE:The Custom Compression level is available only for Tight, Zlib, and ZlibHex encoding.

  • Select Allow JPEG compression if you want the JPEG scheme to allow more compression for Tight encoding of full-color data. However the image quality might degrade in particular screen areas.

    The JPEG compression level ranges from poor to best. Higher JPEG quality levels result in less compression but better image quality. The Tight encoder usually tries to use JPEG only where it does not cause major quality losses, so you can safely choose low quality levels.

  • Select Enable if you want the Viewer to enable dynamic bandwidth detection and optimize the session parameters accordingly.

  • Select Automatic to opt for pre configured settings for the bandwidth that is detected.

  • Select Manual to manually select the settings to be used for different bandwidth spectrums.

NOTE:The Enable Caching and Dynamic Bandwidth Optimization options are available only for a ZENworks 11 SP3 managed device that is remotely managed from a ZENworks 2020 server.

Reset to Default: Click Reset to Default if you want to restore user-defined settings to the defaults.

Bandwidth: Use this setting to display bandwidth information.

Encoding: Select the encoding from the Encoding list.

Color Depth (in bpp): Select the pixel format from the Color Depth (in bpp) list.