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Remote Desktop Setup for Ubuntu 24.04 AWS EC2

This guide explains how to set up remote desktop access on an Ubuntu 24.04 AWS EC2 instance so you can connect from a Windows machine.

System Information

This setup is tested on:

  • OS: Ubuntu 24.04 LTS (AWS EC2)
  • Architecture: x86_64
  • Kernel: Linux 6.14.0-1011-aws

Option 1: XRDP (Recommended for Windows RDP)

XRDP allows you to use Windows' built-in Remote Desktop Connection to connect to your Ubuntu machine.

Installation Steps

  1. Update the system:

    sudo apt update && sudo apt upgrade -y

  2. Install desktop environment (XFCE - lightweight):

    sudo apt install -y xfce4 xfce4-goodies

  3. Install XRDP:

    sudo apt install -y xrdp

  4. Configure XRDP to use XFCE:

    echo "xfce4-session" > ~/.xsession

  5. Start and enable XRDP service:

    sudo systemctl enable xrdp
sudo systemctl start xrdp

  6. Configure firewall (if ufw is enabled):

    sudo ufw allow 3389

  7. Set password for ubuntu user:

    sudo passwd ubuntu

Install Firefox Browser

sudo apt install -y firefox

Option 2: VNC Server (Alternative)

VNC provides cross-platform remote desktop access but requires a separate VNC client.

Installation Steps

  1. Install VNC server and desktop:

    sudo apt update
sudo apt install -y ubuntu-desktop-minimal tigervnc-standalone-server tigervnc-common

  2. Set VNC password:

    vncpasswd

  3. Start VNC server:

    vncserver :1 -geometry 1920x1080 -depth 24

  4. Configure firewall:

    sudo ufw allow 5901

AWS Security Group Configuration

Important: You must configure your AWS Security Group to allow remote desktop connections.

  1. Go to AWS Console → EC2 → Security Groups
  2. Select your instance's security group
  3. Add inbound rule:
    • For XRDP:
      • Type: Custom TCP
      • Port: 3389
      • Source: Your IP address (for security)
    • For VNC:
      • Type: Custom TCP
      • Port: 5901
      • Source: Your IP address (for security)

Connecting from Windows

Using XRDP (Option 1)

  1. Open "Remote Desktop Connection" (built into Windows)
  2. Computer: your-ec2-hostname:3389 or your-ec2-public-ip:3389
  3. Username: ubuntu
  4. Password: The password you set with sudo passwd ubuntu

Using VNC (Option 2)

  1. Install a VNC client (like RealVNC Viewer)
  2. Connect to: your-ec2-hostname:5901 or your-ec2-public-ip:5901
  3. Enter the VNC password you set with vncpasswd

Troubleshooting

XRDP Issues

  • Black screen: Make sure you set the session with echo "xfce4-session" > ~/.xsession
  • Connection refused: Check if XRDP is running: sudo systemctl status xrdp
  • Can't connect: Verify AWS Security Group allows port 3389

VNC Issues

  • Display not found: Start VNC server with vncserver :1
  • Connection timeout: Check AWS Security Group allows port 5901
  • Poor performance: Try reducing color depth: vncserver :1 -depth 16

General Network Issues

  • Verify your EC2 instance's public IP hasn't changed
  • Check that your home/office IP is allowed in the security group
  • Ensure the EC2 instance is running and accessible via SSH

Security Considerations

  • Limit source IPs: Always restrict remote desktop access to your specific IP addresses
  • Use strong passwords: Set complex passwords for user accounts
  • Consider VPN: For production environments, consider accessing through a VPN
  • Disable when not needed: Stop XRDP/VNC services when not in use: 
    sudo systemctl stop xrdp  # For XRDP
vncserver -kill :1        # For VNC

Performance Tips

  • XFCE is lightweight: We chose XFCE desktop environment for better performance over RDP
  • Adjust resolution: Use appropriate screen resolution for your connection speed
  • Close unused applications: Remote desktop uses bandwidth, so close unnecessary programs
  • Use compression: Some RDP clients offer compression options for slower connections