Testing the OpenVPN Connection

Oct 13, 2025 by wbrum.org 54 views

Introduction

In this article, we will explore the process of installing Ubuntu Server 24.04 on the Raspberry Pi 5, specifically with the official 7" display. We will also cover the setup of an OpenVPN server, providing a secure and reliable VPN solution. This guide is designed for users who are new to Linux and Raspberry Pi, as well as experienced users who want to create a VPN server on their Raspberry Pi 5.

Prerequisites

Before we begin, make sure you have the following:

A Raspberry Pi 5 with 8GB of RAM
The official 7" display for Raspberry Pi
A microSD card with a minimum capacity of 8GB
A computer with a USB port and a microSD card reader
A stable internet connection
A power supply for the Raspberry Pi 5

Installing Ubuntu Server 24.04 on Raspberry Pi 5

To install Ubuntu Server 24.04 on your Raspberry Pi 5, follow these steps:

Step 1: Download the Ubuntu Server 24.04 Image

First, download the Ubuntu Server 24.04 image from the official Ubuntu website. You can do this by visiting the Ubuntu website and selecting the Raspberry Pi 5 (8GB) option.

Step 2: Write the Image to the MicroSD Card

Once you have downloaded the image, use a tool like Etcher to write it to the microSD card. Make sure to select the correct device and follow the on-screen instructions.

Step 3: Boot the Raspberry Pi 5

Insert the microSD card into the Raspberry Pi 5 and connect the official 7" display. Boot the Raspberry Pi 5 by plugging in the power supply.

Step 4: Configure the Network

Once the Raspberry Pi 5 has booted, use the keyboard and mouse to configure the network settings. You can do this by selecting the "Network" option from the menu and configuring the IP address, subnet mask, gateway, and DNS settings.

Step 5: Install OpenVPN

To install OpenVPN, use the following command:

sudo apt update
sudo apt install openvpn

This will install the OpenVPN package and its dependencies.

Step 6: Configure OpenVPN

To configure OpenVPN, create a new file called server.conf in the /etc/openvpn directory. Add the following lines to the file:

port 1194
proto udp
dev tun
ca ca.crt
cert server.crt
key server.key
dh dh2048.pem
topology subnet
server 10.8.0.0 255.255.255.0

This will configure OpenVPN to use the UDP protocol, create a new TUN device, and specify the certificate and key files.

Step 7: Generate Certificate and Key Files

To generate the certificate and key files, use the following commands:

sudo openssl req -x509 -newkey rsa:2048 -nodes -keyout server.key -out server.crt -days 365 -subj "/C=US/ST=State/L=Locality/O=Organization/CN=server"
sudo openssl dhparam -out dh2048.pem 2048

This will generate the certificate and key files and the Diffie-Hellman parameters.

Step 8: Start OpenVPN

To start OpenVPN, use the following command:

sudo systemctl start openvpn

This will start the OpenVPN service.

Step 9: Configure the Firewall

To configure the firewall, use the following command:

sudo ufw allow openvpn

This will allow incoming traffic on the OpenVPN port.

Testing the OpenVPN Connection

To test the OpenVPN connection, use the following command:

sudo openvpn --config /etc/openvpn/client.conf

This will connect to the OpenVPN server using the client configuration file.

Conclusion

In this article, we have covered the process of installing Ubuntu Server 24.04 on the Raspberry Pi 5, specifically with the official 7" display. We have also covered the setup of an OpenVPN server, providing a secure and reliable VPN solution. This guide is designed for users who are new to Linux and Raspberry Pi, as well as experienced users who want to create a VPN server on their Raspberry Pi 5.

Troubleshooting

If you encounter any issues during the installation process, refer to the following troubleshooting guide:

Issue 1: The Raspberry Pi 5 does not boot.
- Solution: Check the power supply and ensure that the microSD card is properly inserted.
Issue 2: The OpenVPN connection fails.
- Solution: Check the certificate and key files and ensure that they are properly configured.
Issue 3: The firewall does not allow incoming traffic.
- Solution: Check the firewall configuration and ensure that it is properly configured.

Additional Resources

For additional resources and information, refer to the following:

Ubuntu Server 24.04 Documentation: https://ubuntu.com/server/docs
OpenVPN Documentation: https://openvpn.net/community-resources/
Raspberry Pi 5 Documentation: https://www.raspberrypi.org/documentation/
Ubuntu Server 24.04 on Raspberry Pi 5 and Official 7" Display: Q&A ====================================================================

Introduction

In our previous article, we covered the process of installing Ubuntu Server 24.04 on the Raspberry Pi 5, specifically with the official 7" display. We also covered the setup of an OpenVPN server, providing a secure and reliable VPN solution. In this article, we will answer some of the most frequently asked questions related to Ubuntu Server 24.04 on Raspberry Pi 5 and official 7" display.

Q: What are the system requirements for Ubuntu Server 24.04 on Raspberry Pi 5?

A: The system requirements for Ubuntu Server 24.04 on Raspberry Pi 5 are:

Raspberry Pi 5 with 8GB of RAM
Official 7" display for Raspberry Pi
MicroSD card with a minimum capacity of 8GB
Stable internet connection
Power supply for the Raspberry Pi 5

Q: How do I install Ubuntu Server 24.04 on Raspberry Pi 5?

A: To install Ubuntu Server 24.04 on Raspberry Pi 5, follow these steps:

Download the Ubuntu Server 24.04 image from the official Ubuntu website.
Write the image to the microSD card using a tool like Etcher.
Boot the Raspberry Pi 5 and configure the network settings.
Install OpenVPN using the following command: sudo apt update && sudo apt install openvpn
Configure OpenVPN by creating a new file called server.conf in the /etc/openvpn directory.
Generate the certificate and key files using the following commands: sudo openssl req -x509 -newkey rsa:2048 -nodes -keyout server.key -out server.crt -days 365 -subj "/C=US/ST=State/L=Locality/O=Organization/CN=server" and sudo openssl dhparam -out dh2048.pem 2048
Start OpenVPN using the following command: sudo systemctl start openvpn

Q: How do I configure the firewall for OpenVPN?

A: To configure the firewall for OpenVPN, use the following command: sudo ufw allow openvpn This will allow incoming traffic on the OpenVPN port.

Q: How do I test the OpenVPN connection?

A: To test the OpenVPN connection, use the following command: sudo openvpn --config /etc/openvpn/client.conf This will connect to the OpenVPN server using the client configuration file.

Q: What are the benefits of using OpenVPN on Raspberry Pi 5?

A: The benefits of using OpenVPN on Raspberry Pi 5 include:

Secure and reliable VPN connection
Easy to set up and configure
Can be used as a VPN server or client
Supports multiple protocols, including UDP and TCP

Q: Can I use OpenVPN on Raspberry Pi 5 with other operating systems?

A: Yes, you can use OpenVPN on Raspberry Pi 5 with other operating systems, including Raspbian and other Linux distributions.

Q: How do I troubleshoot issues with OpenVPN on Raspberry Pi 5?

A: To troubleshoot issues with OpenVPN on Raspberry Pi 5, refer to the following troubleshooting guide:

Issue 1: The Raspberry Pi 5 does not boot.
- Solution: Check the power supply and ensure that the microSD card is properly inserted.
Issue 2: The OpenVPN connection fails.
- Solution: Check the certificate and key files and ensure that they are properly configured.
Issue 3: The firewall does not allow incoming traffic.
- Solution: Check the firewall configuration and ensure that it is properly configured.

Conclusion

In this article, we have answered some of the most frequently asked questions related to Ubuntu Server 24.04 on Raspberry Pi 5 and official 7" display. We hope that this article has been helpful in providing you with the information you need to set up and configure OpenVPN on your Raspberry Pi 5. If you have any further questions or need additional assistance, please don't hesitate to contact us.