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The Secret of Raspberry Pi VPN Server


With the rise of the internet of things applications, we most often ignore the security of devices that are connected to them. We are not secure every time we connect to any network.

 We must know about networks and networking to make our devices secure. This affects the privacy of our data too. Any mishap in this regard can lead to a greater loss of information.

What is Raspberry Pi?

Raspberry Pi
Raspberry Pi

It is basically a small single board computer. It was first developed in the UK. Raspberry Pi is capable of doing a variety of tasks.

 You can do online browsing through it quite easily. It is plugged into a computer monitor and then you can do all that you do on your any desktop PC.

In this article, you will know about raspberry pi VPN server. Some of the main points that are described ahead in this article are:

  • What is raspberry pi?
  • Security tips while using raspberry pi
  • Raspberry pi VPN Server

What is Raspberry Pi?

It is basically a small single board computer. It was first developed in the UK. Raspberry Pi is capable of doing a variety of tasks.

 You can do online browsing through it quite easily. It is plugged into a computer monitor and then you can do all that you do on your any desktop PC.

Security Tips while Using Raspberry Pi Server:

a) Removing the Default User from Raspberry Pi:

You should remove the default username pi as it is quite easy for anyone to hack your system using the default username.

In this case, one will only need to try some passwords and then log into your system.

To do this, you will need to log in from the user pi and create a new user (for example user ABC). Then from the 2nd user (user ABC) delete the pi user.

b) Changing the Password of User Pi:

It is highly recommended that you remove the pi user. But if you are unable to do this, then you must change its password as soon as possible.

 Follow these steps to do this:

  • Log in to raspberry pi with the user pi
  • In the terminal window type in the command passwd
  • Then you will be asked to enter your current password
  • Then enter the new password

Setting up an L2TP VPN Server on Raspberry Pi:

Setting up Raspberry Pi

VPN allows us to access the web securely. By VPN you can access the resources on the internet securely even if you are on any public WIFI.

You can create a VPN server using raspberry pi to secure your online presence 24 /7 without consumption of any sort of excessive energy

Equipment:

You will need following things in order to create VPN using raspberry pi

  • Raspberry Pi
  • MicroSD card
  • An Ethernet cord

VPN Server’s IP Address:

Here you will have a choice of using static or a dynamic IP address. Setting up VPN for a static IP address is quite an easy task

But if you intend to go for dynamic IP address then you will be in need of a dynamic DNS service.

Port forwarding:

This is another thing you need to have a look before getting started with the raspberry pi. You will need to port forward for OpenVPN software.

The default one, in this case, is 1194. You must change it to avoid any sort of attack by port scanning. The protocol used in this case will be UDP.

Installing the VPN Server:

Here a script called piVPN will do the work for you. To download and install this script from piVPN’s script page type the command:

curl –L  https://install.pivpn.io | bash

  1. Then you will see the installation screen. Click on OK in order to proceed to next step
  2. You will get a screen for static IP address settings. Click on YES to proceed with the static IP settings.
  3. You see a screen for IP conflict warning. Some routers assign your IP address to any other device. Ignore it and click OK to proceed to next setting
  4. Click OK on the local user setting screen
  5. Then you will see a screen of the users. Select the user you need to get started with
  6. You will see the screen of unattended upgrades, It is important for security. click yes to enable the settings
  7. In the next screen, you will be asked to choose the protocol that OpenVPN will use. Select UDP protocol.
  8. You will be asked to select the port. Change the default one to avoid port scanning attacks
  9. The next screen will consist of settings for encryption key size. 2048 bit encryption is recommended in this case. This is because it offers will protection.
  10. The next screen will tell about piVPN. It will consume some time
  11. Then you will be asked to choose a public IP or a dynamic one. You can select the DNS in this case
  12. You will be asked to enter your DNS name
  13. Select the DNS provider. DNS provider’s job is to resolve any URL into IP address.
  14. After greeting screen, you will see a screen asking for a reboot. Click yes as it is essential in this case

Now you are done with almost 90% of installation. You still need to do some settings more.

Setting up OpenVPN User:

Type in the command

Sudo pivpn add

  1. Then enter the username and password for this new user.
  2. To connect the client to your intended device, you will be in need of SFTP.
  3. FileZilla can be helpful to handle the FTP connection.
  4. Connect by FileZilla. Make sure that you have written ‘sftp://’ for the raspberry pi’s address
  5. After logging in, find the folder where the OpenVPN is located
  6. Download the .ovpn file to your PC as it contains some very important data for building the connection
  7. Download the client from the OpenVPN official website
  8. On the screen opened up for you, double-click the .ovpn file to import it to the OpenVPN client
  9. Right-click the OpenVPN client and click on connect to build connection
  10. Enter the paraphrase you set up

When you have completed all the above steps then the OpenVPN client will attempt to connect to the raspberry pi VPN server.

If it turns green then congratulations you have completed your work successfully.

Conclusion: Securing your internet privacy is quite important for you. As now you have learned about the raspberry pi VPN server, you can browse online securely quite easily. You can access remote resources online without any issue. Your internet browsing will remain encrypted in this case.

Guest Post By: Allen Jame is a professional blogger and a web developer. Allen enjoys reading books too. Allen loves writing tech related blogs.

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