With increasing risks to online privacy, creating your own VPN with WireGuard offers a secure and high-performance solution. This tutorial shows you how to install and configure WireGuard on a VPS with the IP address 51.0.0.27, to route all your Internet traffic securely.

📌 Why Choose WireGuard?

• Speed: Modern protocol (better performance than OpenVPN/IPSec)
• Simplicity: Minimalist configuration (~100 lines of code)
• Security: Encryption with ChaCha20 and key authentication

ℹ️ Technical comparison: WireGuard offers twice the throughput of OpenVPN with reduced latency.

🛠️ Prerequisites

• A VPS (Ubuntu/Debian recommended) with IP 51.0.0.27
• Root access via SSH
• 10 minutes available

🔧 WireGuard installation

1. Connecting to the VPS

ssh root@51.0.0.27

2. Installing packages

On  Ubuntu/Debian :

sudo apt update && sudo apt install wireguard resolvconf -y

📂 Server Configuration

1. Generation of cryptographic keys

umask 077
wg genkey | tee /etc/wireguard/privatekey | wg pubkey > /etc/wireguard/publickey

2. Server configuration

Create the file /etc/wireguard/wg0.conf :

[Interface]
Address = 10.8.0.1/24
PrivateKey = <CONTENU_PRIVATEKEY>
ListenPort = 51820
PostUp = iptables -A FORWARD -i wg0 -j ACCEPT; iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE
PostDown = iptables -D FORWARD -i wg0 -j ACCEPT; iptables -t nat -D POSTROUTING -o eth0 -j MASQUERADE

3. Service activation

sudo systemctl enable --now wg-quick@wg0

📱 Client Configuration

1. Creating customer keys

wg genkey | tee client_private.key | wg pubkey > client_public.key

2. Adding the client to the server

Edit /etc/wireguard/wg0.conf and add :

[Peer]
PublicKey = <CLIENT_PUBLIC_KEY>
AllowedIPs = 10.8.0.2/32

3. Client configuration file

Create a client.conf file with  :

[Interface]
PrivateKey = <CLIENT_PRIVATE_KEY>
Address = 10.8.0.2/24
DNS = 1.1.1.1

[Peer]
PublicKey = <SERVER_PUBLIC_KEY>
Endpoint = 51.0.0.27:51820
AllowedIPs = 0.0.0.0/0
PersistentKeepalive = 25

🌍 Functionality Test

1. Import  client.conf into the WireGuard application
2. Enable the VPN connection

Check your public IP address:

curl ifconfig.me

→ Should display 51.0.0.27

Stop the connection via VPN

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

Useful resource:
​​​​​​​https://docs.vultr.com/how-to-install-wireguard-vpn-on-debian-12