VNC Multi-Screen Display: Tips for Achieving Remote Multi-Screen Access and Control

# 1. Introduction to Remote Desktop Control Technology

- 1.1 What is VNC (Virtual Network Computing)?
- 1.2 How VNC Works and Its Advantages
- 1.3 The Demand and Challenges of Multi-Screen Display

# 2. Configuring VNC Servers and Clients

In this chapter, we will guide you through the process of setting up VNC servers and clients, laying the groundwork for achieving remote multi-screen access and control. Let's get started with the configurations.

#### 2.1 Steps and Considerations for Building a VNC Server

Before configuring the VNC server, ensure that the VNC software, such as TightVNC or RealVNC, is installed on the server. Then, follow these steps to set up the VNC server:

# Install VNC software
sudo apt-get update
sudo apt-get install tightvncserver

# Start the VNC server
tightvncserver

# Set the VNC login password
tightvncserver -setpassword yourpassword

# Check the status of the VNC server
ps -ef | grep Xtightvnc

During the configuration, pay attention to firewall settings, port opening, and password protection for security concerns.

#### 2.2 Client Connection Settings and Parameter Configuration

The process for clients to connect to the VNC server is relatively straightforward. Simply run the appropriate VNC client software, such as VNC Viewer. Enter the VNC server's IP address and port number in the software, then input the login password to connect to the server.

#### 2.3 Security Configuration and Encryption Transmission Options

To enhance the security of VNC connections, consider using encrypted transmission options. In the configuration of both the VNC server and client, enable encryption to protect the privacy and security of data during transmission.

With these steps, we can successfully configure VNC servers and clients, establishing the basic setup for remote multi-screen access and control. Next, we will delve into the fundamental principles of multi-screen display.

# 3. Fundamental Principles of Multi-Screen Display

In this chapter, we will explore how VNC supports multi-screen access and control, along with the architecture, transmission methods, and related technologies of multi-screen display.

#### 3.1 How Does VNC Support Multi-Screen Access and Control?

VNC combines the contents of multiple screens into a single virtual screen for management on the server side. Then, on the client side, this virtual screen is divided into multiple areas for display and interaction. This allows the client to have unified control over multiple screens and enables the ability to drag windows from one screen to another.

#### 3.2 Architecture and Transmission Methods of Multi-Screen Display

The multi-screen display architecture of VNC typically includes a server side and multiple client sides. The server side is responsible for merging and managing the content of multiple screens, while clients can choose different display methods for viewing and operation. In terms of transmission methods, VNC usually adopts compression and transmission of differential images to reduce network transmission and improve display efficiency.

#### 3.3 Introduction to Multi-Screen Synchronization and Split-Screen Control Technologies

To maintain the synchronicity of multiple screens' content, VNC typically captures and synchronizes changes across all screens in multi-screen display, ensuring that clients can view the latest display content in real-time. Additionally, VNC supports split-screen control for multiple screens, allowing users to flexibly select different screen layouts and operation methods.

By studying the content of this chapter, readers can gain an in-depth understanding