WireGuard VPN Configuration Generator
Generate cryptographically complete WireGuard VPN server (wg0.conf) and client configuration profiles. Includes iptables NAT forwarding rules, custom DNS, and keepalive intervals.
WireGuard VPN Config Generator
Generate cryptographically complete server (wg0.conf) and client tunnels with iptables NAT.
# /etc/wireguard/wg0.conf on VPN Server [Interface] Address = 10.0.0.1/24 ListenPort = 51820 PrivateKey = yCnF/EXAMPLESERVERPRIVKEY+3pMhUvGg8q2tK= SaveConfig = false # NAT Port Forwarding Rules for eth0 PostUp = iptables -A FORWARD -i %i -j ACCEPT; iptables -A FORWARD -o %i -j ACCEPT; iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE PostDown = iptables -D FORWARD -i %i -j ACCEPT; iptables -D FORWARD -o %i -j ACCEPT; iptables -t nat -D POSTROUTING -o eth0 -j MASQUERADE # Client Peer Configuration [Peer] PublicKey = 3hRk/EXAMPLECLIENTPUBKEY+2vPoXwJj6t5uM= AllowedIPs = 10.0.0.2/32
# client.conf on Client Device [Interface] PrivateKey = wBnM/EXAMPLECLIENTPRIVKEY+5qNjTuFf7p1sJ= Address = 10.0.0.2/32 DNS = 1.1.1.1, 1.0.0.1 [Peer] PublicKey = 7kLp/EXAMPLESERVERPUBKEY+9mNqWvHh4r3sL= Endpoint = vpn.example.com:51820 AllowedIPs = 0.0.0.0/0, ::/0 PersistentKeepalive = 25
Configuring Fast, Modern Point-to-Point WireGuard Tunnels
WireGuard is an extremely simple yet fast and modern VPN that utilizes state-of-the-art cryptography (Noise protocol framework, Curve25519, ChaCha20, Poly1305, and BLAKE2s). Operating entirely within the Linux kernel, WireGuard delivers substantially higher throughput and lower latency than legacy IPsec and OpenVPN implementations. Generating properly matched server and client interface blocks with correct iptables packet forwarding is essential for routing traffic securely.
Key Features
Dual Server & Client Config Generation
Produces paired server (/etc/wireguard/wg0.conf) and client (wg0-client.conf) profiles simultaneously.
Automated iptables NAT Port Masquerading
Generates PostUp and PostDown routing rules tailored to your server's primary network WAN interface.
AllowedIPs Routing Hierarchy
Supports full tunnel routing (0.0.0.0/0, ::/0) or split tunneling restricted to specific corporate subnets.
NAT Traversal PersistentKeepalive
Configures standard 25-second keepalive beacons ensuring client connections survive NAT state timeouts.
Cryptographic Key Matching
Provides aligned placeholder Curve25519 public and private key pairs for immediate deployment testing.
Multi-Platform Compatibility
Configs import seamlessly into Linux wg-quick, macOS WireGuard app, Windows client, iOS, and Android.
Common Use Cases
- ✓Systems Engineers & DevOps
Set up private, encrypted administrative access tunnels into VPCs, cloud clusters, and remote datacenters.
- ✓Remote Workers & Digital Nomads
Establish self-hosted personal VPN servers on inexpensive VPS instances (DigitalOcean, Linode, AWS Lightsail).
- ✓Homelab & Self-Hosting Enthusiasts
Tunnel into home local area networks (LANs) securely through carrier-grade NAT (CGNAT).
- ✓Network Security Administrators
Replace cumbersome legacy OpenVPN servers with high-speed kernel-level WireGuard gateways.
Frequently Asked Questions
What is the default port for WireGuard?
WireGuard defaults to UDP port 51820, though it can be configured to listen on any valid unassigned UDP port.
Why does WireGuard require PersistentKeepalive behind NAT?
WireGuard is completely silent when idle and sends no data. When a client is behind a stateful NAT firewall or home router, the router's NAT translation table will expire unless a periodic keepalive packet (typically every 25 seconds) is transmitted.
What does AllowedIPs do in WireGuard?
AllowedIPs acts as both an access control list and a routing table. For a server, it restricts which IP address a peer may send from. For a client, setting AllowedIPs = 0.0.0.0/0, ::/0 routes all Internet traffic through the tunnel.
How do I start WireGuard on Linux after generating this file?
Save the server configuration to /etc/wireguard/wg0.conf and run 'wg-quick up wg0', or enable it on boot using 'systemctl enable --now wg-quick@wg0'.
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