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Contents

About This Guide

Chapter 1: Introduction

Principles of VNC remote control

Getting the computers ready to use

Connectivity and feature matrix

What to read next

Chapter 2: Getting Connected

Step 1: Ensure VNC Server is running on the host computer

Step 2: Start VNC Viewer on the client computer

Step 3: Identify VNC Server running on the host computer

Step 4: Request an encrypted connection

Step 5: Connect to VNC Server

Troubleshooting connection

Chapter 3: Using VNC Viewer

Starting VNC Viewer

Starting Listening VNC Viewer

Configuring VNC Viewer before you connect

Connecting to a host computer

The VNC Viewer user experience

Using the toolbar

Using the shortcut menu

Using the VNC Viewer - Options dialog

Managing the current connection

Changing appearance and behavior

Restricting access to features

Chapter 4: Connecting From A Web Browser

Connecting to a host computer

The VNC Viewer for Java user experience

Working with VNC Viewer for Java

Chapter 5: Exchanging Information

Printing host computer files to a local printer

Transfering files between client and host computers

Copying and pasting text between client and host computers

Communicating securely using chat

Chapter 6: Setting Up VNC Server

Licensing VNC Server

Starting VNC Server

Running multiple instances of VNC Server

Working with VNC Server

Configuring ports

Notifying when users connect

Preventing connections to VNC Server

Restricting functionality for connected users

Stopping VNC Server

Chapter 7: Making Connections Secure

Authenticating connections to VNC Server

Relaxing the authentication rules

Bypassing the authentication rules

Changing the encryption rules

Preventing particular connections to VNC Server

Restricting features for particular connected users

Uniquely identifying VNC Server

Protecting privacy

Appendix A: Saving Connections

Saving connections to VNC Address Book

Using VNC Address Book to connect

Managing connections using VNC Address Book

Saving connections to desktop icons

Previous Next Chapter 1, Introduction

Connectivity and feature matrix

You can use VNC Viewer to connect to:

•  The latest version of VNC Server incorporated in VNC.

•  Previous versions of VNC Server incorporated in VNC Enterprise Edition or VNC Personal Edition.

•  VNC-compatible Server applications from third parties.

Note that the latter two may require configuration before a connection can be established, and that not all RealVNC™ remote control features are available once connected.

Note: This section assumes you are connecting from the latest version of VNC Viewer. For alternatives, see Connecting from alternatives to VNC Viewer.

Connecting to VNC

You can establish a connection from VNC Viewer to the latest version of VNC Server incorporated in VNC providing the following conditions are met.

 

VNC Server

 

Enterprise

Personal

Free

VNC Viewer

No configuration required.

On the client computer, VNC Viewer encryption must not be set to Always Maximum.

On the client computer, VNC Viewer encryption must not be set to Always Maximum or Always on.

Note: For information on configuring VNC Viewer encryption, see Step 4: Request an encrypted connection.

Restrictions

•  Connections to VNC Server (Personal) cannot be encrypted using ultra-secure 256-bit AES.

•  Connections to VNC Server (Free) cannot be encrypted at all.

•  The credentials you enter to log on to your client computer cannot be used to authenticate automatically to VNC Server (Personal).

•  The credentials you enter to log on to the host computer cannot be used to authenticate to VNC Server (Free).

•  Connections to VNC Server (Free) are not optimized for performance.

•  VNC Viewer for Java cannot be downloaded from VNC Server (Free).

Once a connection is established, you cannot:

•  Exchange files with VNC Server (Free).

•  Print VNC Server (Free) files.

•  Chat with other VNC Server (Free) users.

Connecting to VNC Enterprise Edition or VNC Personal Edition 4.6

You can establish a connection from VNC Viewer to VNC Server incorporated in VNC Enterprise Edition or VNC Personal Edition 4.6 without configuration.

Restrictions

The credentials you enter to log on to the host computer cannot be used to authenticate to VNC Personal Edition.

Connecting to VNC Enterprise Edition or VNC Personal Edition 4.5 or earlier

You can establish a connection from VNC Viewer to VNC Server incorporated in VNC Enterprise Edition or VNC Personal Edition 4.5 or earlier providing the following conditions are met.

 

VNC Server

 

VNC Enterprise Edition 4.5-

VNC Personal Edition 4.5-

VNC Viewer

On the client computer, VNC Viewer encryption must not be set to Always Maximum.

On the client computer, VNC Viewer encryption must not be set to Always Maximum.

Restrictions

•  Connections to VNC Enterprise Edition and VNC Personal Edition cannot be encrypted using ultra-secure 256-bit AES.

•  The credentials you enter to log on to the host computer cannot be used to authenticate to VNC Personal Edition.

Once a connection is established, you cannot:

•  Exchange files with VNC Enterprise Edition or VNC Personal Edition 4.3 or earlier. Note under Windows, there are also certain restrictions when connected to version 4.5 and 4.4 as well.

•  Print VNC Enterprise Edition or VNC Personal Edition 4.4 or earlier files.

•  Chat with VNC Enterprise Edition or VNC Personal Edition 4.4 or earlier users.

Connecting to VNC-compatible Server applications

You can establish a connection from VNC Viewer to the following (selected) third party VNC-compatible Server providing certain conditions are met.

 

VNC-Compatible Server

 

Apple Remote Desktop or Screen Sharing built-in to Mac OS X

Remote Desktop or Desktop Sharing built-in to Ubuntu

Community projects such as TightVNC or UltraVNC

VNC Viewer

On the host computer, VNC viewers may control screen with password must be turned on, and a password set.

 

On the client computer, VNC Viewer encryption must not be set to Always Maximum or Always on.

On the host computer, Allow other users to view your desktop and Allow other users to control your desktop must be turned on.

 

On the client computer, VNC Viewer encryption must not be set to Always Maximum or Always on.

On the client computer, VNC Viewer encryption must not be set to Always Maximum or Always on.

Restrictions

Note that no RealVNC remote control features are available for connections to host computers running VNC-compatible Server applications. In particular, connections cannot be encrypted.

Connecting from alternatives to VNC Viewer

You can connect to the latest version of VNC Server from the following alternatives to VNC Viewer:

•  VNC Viewer for Java . See Connecting from VNC Viewer for Java.

•  VNC Viewer Plus . See Connecting from VNC Viewer Plus.

•  VNC Viewer for iOS . See Connecting from mobile devices.

•  VNC Viewer for Android . See Connecting from mobile devices.

•  VNC-compatible Viewer applications from third parties. See Connecting from VNC-compatible Viewer software.

Connecting from VNC Viewer for Java

You can use any modern web browser to download VNC Viewer for Java from VNC Server (Enterprise) or VNC Server (Personal) on demand, and then immediately connect.

Note: You cannot download VNC Viewer for Java from VNC Server (Free).

You do not require the credentials of a user with administrative privileges on the host computer in order to use VNC Viewer for Java. For more information, see Chapter 4, Connecting From A Web Browser.

Restrictions

Once a connection is established, you cannot:

•  Exchange files with the host computer.

•  Print host computer files.

•  Chat with other connected users, or with a host computer user.

•  Save connections.

•  Scale the host computer’s desktop.

Connecting from VNC Viewer Plus

You can purchase and install VNC Viewer Plus from www.realvnc.com/products/viewerplus/.

In order to make a standard VNC connection, select VNC from the Connection Mode dropdown on the VNC Viewer Plus dialog.

Restrictions

Once a connection is established, you cannot save connections to VNC Address Book.

Connecting from mobile devices

You can purchase and install:

•  VNC Viewer for iOS from the Apple App Store. Visit www.realvnc.com/products/ios/ for more information.

•  VNC Viewer for Android from Google Play. Visit www.realvnc.com/products/android/ for more information.

Restrictions

Once a connection is established, you cannot:

•  Exchange files with the host computer.

•  Print host computer files.

•  Make the connection view only.

•  Chat with other connected users, or with a host computer user.

Connecting from VNC-compatible Viewer software

Other organizations offer VNC-compatible Viewer applications, for example Remote Desktop Viewer built-in to Ubuntu.

In order to allow connections to VNC Server (Enterprise) or VNC Server (Personal), make sure:

•  Encryption is turned off. See Changing the encryption rules.

•  System authentication is turned off. See Relaxing the authentication rules.

Restrictions

Note that no RealVNC remote control features are available for connections from client computers running VNC-compatible Viewer applications. In particular, connections cannot be encrypted.