VNC Practical Application: Setting Up a VNC Server on Linux Systems

# 1. Introduction

## 1.1 What is VNC?

VNC (Virtual Network Computing) is a remote desktop control software that allows users to connect to a remote computer via a network and fully control its desktop. Users can operate the remote computer as if it were local, including viewing the desktop, running programs, editing files, and more.

## 1.2 VNC Use Cases

VNC is widely used in scenarios such as remote technical support, remote education, server management, and remote work. It enables users to easily control servers remotely, help remote users solve problems, and demonstrate remotely. The advent of VNC has greatly facilitated remote collaboration and management.

# 2. Preparations

Before configuring a VNC server, some preparatory work needs to be done. This includes verifying the Linux system version and installing the necessary software. The following will detail these steps.

### 2.1 **Verify Linux System Version**

Before starting the VNC server configuration, ***mon Linux distributions such as Ubuntu, CentOS, etc., usually support it. You can use the following command to view system version information:

lsb_release -a

This will output information including the distribution name and version number, ensuring that the system supports VNC.

### 2.2 **Install Necessary Software**

Installing the VNC service requires the use of some software packages; please ensure that the system is updated to the latest version before installation. The specific installation process will vary depending on the Linux distribution, and here are some common distribution package installation commands:

- **Ubuntu/Debian:**

sudo apt update
sudo apt install tightvncserver

- **CentOS:**

sudo yum install epel-release
sudo yum install tigervnc-server

After installation, we can continue to configure the VNC server.

# 3. Configuring the VNC Server

In this chapter, we will discuss in detail how to configure the VNC server, including creating VNC users, configuring the VNC service, and setting the VNC connection password.

#### 3.1 Creating a VNC User

Firstly, we need to create a new VNC user for remote connection to the server. This can be done through the following steps:

# Create a new user (e.g., vncuser)
sudo adduser vncuser

# Set a new user password
sudo passwd vncuser