How to Install WireGuard on Ubuntu: A Comprehensive Guide :

Hello and welcome to our guide on installing WireGuard on Ubuntu. WireGuard is a free and open-source VPN software that offers faster speeds, improved security, and simplified setup compared to other VPN solutions. In this article, we will provide a step-by-step guide on how to install WireGuard on Ubuntu and answer common questions about the installation process.

Part 1: Installing WireGuard on Ubuntu

WireGuard can be easily installed on Ubuntu using the apt package manager. Follow these steps to install WireGuard on Ubuntu:

Step 1: Update Your System

Before installing any new software, it is important to update your system with the latest packages. Open the terminal and run the following command:

$ sudo apt update

This will update your package list and fetch the latest updates from the Ubuntu repositories.

Step 2: Install WireGuard

Once your system is updated, you can install WireGuard by running the following command:

$ sudo apt install wireguard

This will install the WireGuard software along with its dependencies on your system.

Step 3: Generate Keys

WireGuard uses public-key cryptography to secure connections between devices. To establish a connection, you need to generate a public and private key pair. Run the following command to generate your keys:

$ umask 077
$ wg genkey > privatekey
$ wg pubkey < privatekey > publickey

The first command sets the file permissions for the private key file to 600 (read and write only for the owner). The second command generates a private key and saves it in a file named “privatekey”. The third command generates a public key from the private key and saves it in a file named “publickey”.

Step 4: Configure WireGuard

To configure WireGuard, you need to create a configuration file that specifies the network interface and its parameters. Here’s an example configuration file:

PrivateKey = your_private_key_here
Address =
ListenPort = 51820
PublicKey = your_peer_public_key_here
AllowedIPs =
Endpoint = your_peer_ip_address_here:51820

Replace “your_private_key_here” with your private key and “your_peer_public_key_here” with the public key of the peer device you want to connect to. Also replace “your_peer_ip_address_here” with the IP address of the peer device. Save the configuration file as wg0.conf in the /etc/wireguard directory.

Step 5: Start WireGuard

To start WireGuard, run the following command:

$ sudo wg-quick up wg0

This will start the WireGuard interface and load the configuration file.

Part 2: Frequently Asked Questions

What are the system requirements for installing WireGuard on Ubuntu?

WireGuard is designed to be lightweight and can run on almost any modern device. However, the following are the recommended system requirements for installing WireGuard on Ubuntu:

  • Ubuntu 18.04 or later
  • 1 GHz or faster processor
  • 1 GB RAM
  • 10 GB hard drive space

Can I install WireGuard on other Linux distributions?

Yes, WireGuard can be installed on other Linux distributions using their respective package managers. Refer to their documentation for specific instructions.

How can I verify that WireGuard is running?

You can verify that WireGuard is running by checking the status of the wg0 interface using the following command:

$ sudo wg show

This will display the current configuration of the WireGuard interface.

How can I configure WireGuard to start automatically?

You can configure WireGuard to start automatically by adding the following line to your /etc/rc.local file:

sudo wg-quick up /etc/wireguard/wg0.conf

This will start WireGuard with the configuration file specified every time your system boots up.


In this article, we have provided a comprehensive guide on installing WireGuard on Ubuntu. We hope this helps you take advantage of the many benefits WireGuard has to offer. If you have any further questions or comments, feel free to leave them below. Thank you for reading!

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