ihasvpn

A self-hosted WireGuard server with a secure web console, in one container.

ihasvpn.org shows what it does and what it looks like.

Start it, open the console, create a peer, scan the QR code. ihasvpn runs the tunnel on the kernel's WireGuard module, keeps the NAT rules and forwarding sysctls in order, and gives you a dashboard that shows who is connected, how much they are moving, and a button to cut them off.

What it does

• Peers. Create, edit, disable, delete. The server generates the key pair (and a preshared key) and shows a QR code and a .conf download; or the client brings its own public key and the private key never leaves the device. Pin a tunnel address or let ihasvpn allocate one. Set an expiry and the peer is disconnected on time. Rotate keys in one click.
• Who is connected. Live status from the interface counters every two seconds: endpoint, last handshake, session length, current rate, total transfer. Usage history in five-minute buckets, per peer and overall, kept for 90 days.
• Disconnect them. Disconnect removes the peer from the interface and keeps it off until you enable it again. Reset session drops the current session and lets the client handshake afresh.
• Fast. Kernel data plane over netlink, no user-space hop. Tuned sysctls, TCP MSS clamping, optional host networking. Falls back to wireguard-go on hosts without the module and tells you so. See docs/performance.md.
• Locked down. argon2id passwords, two-factor authentication with recovery codes, viewer and administrator roles, rate-limited login, same-origin enforcement, strict CSP, built-in TLS if you want it, and an audit log of every change (including every time a peer's configuration is viewed). See SECURITY.md.
• Observable. /api/health for a liveness probe and /metrics in Prometheus format, guarded by a bearer token.
• Self-contained. One static Go binary, one SQLite file under /data, no other services. Multi-arch image for amd64 and arm64.

Screenshots

The dashboard: who is connected, live throughput, traffic history and the server's details.

Peers, with live rates and totals. Connected peers sort to the top.

A peer: status, endpoint, handshake, keys and usage, with disconnect, session reset and key rotation a click away.

The same peer's configuration: scan the QR code with the WireGuard app, copy the text, or download the .conf.

Settings: endpoint, client defaults, peer isolation and MSS clamping. Changes apply without a restart.

Quick start

curl -O https://raw.githubusercontent.com/Coffey-Labs/ihasvpn/main/docker-compose.yml
# edit IHASVPN_ENDPOINT (your public hostname or IP), then:
docker compose up -d

Open http://localhost:51821, create the first administrator, and add a peer. Point the WireGuard app on your phone at the QR code.

The console is bound to localhost in the compose file on purpose. To reach it from elsewhere, either set IHASVPN_TLS_SELF_SIGNED: "true" and bind to the address you need, or put a TLS-terminating reverse proxy in front of it and list the proxy in IHASVPN_TRUSTED_PROXIES.

For the fastest configuration, docker-compose.host.yml runs on the host network; docs/performance.md says when that is worth it and which host sysctls to set.

Requirements

• Docker (or Podman) on a Linux host with a kernel from 5.6 on. Older kernels work with wireguard-dkms installed on the host, or fall back to the slower user-space data plane automatically.
• The container needs NET_ADMIN and the forwarding sysctls in the compose file. SYS_MODULE is not needed unless the host has never loaded the module and cannot autoload it.
• UDP port 51820 (or whatever you choose) reachable from the internet.

Configuration

Infrastructure is configured through the environment; everything an administrator might change while the server runs lives in the database and is edited in the console under Settings (endpoint, DNS, default client routes, MTU, keepalive, peer isolation, MSS clamping, preshared keys).

Variable	Default	Meaning
IHASVPN_ENDPOINT		Public hostname or IP for client configs. Also asked for at first-run setup.
IHASVPN_PORT	51820	UDP listen port.
IHASVPN_SUBNET	10.8.0.0/24	IPv4 tunnel network; the server takes the first address.
IHASVPN_SUBNET6		IPv6 tunnel network, e.g. fd42:42:42::/64. Off when empty.
IHASVPN_DNS	1.1.1.1, 1.0.0.1	Resolvers handed to clients on first run.
IHASVPN_INTERFACE	wg0	Interface name.
IHASVPN_EGRESS_INTERFACE	auto	Interface to masquerade on. Auto uses the default route.
IHASVPN_HTTP_LISTEN	:51821	Console listen address.
IHASVPN_TLS_SELF_SIGNED	false	Serve HTTPS with a certificate generated into /data.
IHASVPN_TLS_CERT, IHASVPN_TLS_KEY		Serve HTTPS with your own certificate.
IHASVPN_SECURE_COOKIES	false	Mark cookies Secure when TLS terminates at a proxy.
IHASVPN_TRUSTED_PROXIES		CIDRs whose X-Forwarded-For is believed.
IHASVPN_METRICS_TOKEN		Bearer token for /metrics. A signed-in session works too.
IHASVPN_SESSION_IDLE	12h	Sign out after this much inactivity.
IHASVPN_SESSION_MAX	168h	Sign out after this long regardless.
IHASVPN_TRAFFIC_RETENTION	2160h	How long usage history is kept (90 days).
IHASVPN_POLL_INTERVAL	2s	How often the interface counters are read.
IHASVPN_BACKEND	auto	kernel, userspace or mock. Auto prefers the kernel.
IHASVPN_MANAGE_FIREWALL	true	Set to false if the host owns the NAT rules.
IHASVPN_MANAGE_SYSCTL	true	Set to false if the host has tuned itself.
IHASVPN_DATA_DIR	/data	Where the database and TLS files live.
IHASVPN_LOG_LEVEL, IHASVPN_LOG_JSON	info, false	Logging.

Locked out?

docker exec -it ihasvpn ihasvpn reset-password admin

sets a new password for that user, clears their second factor and ends their sessions. It runs against the same database, so no restart is needed.

Client setup

Any WireGuard client works: the official apps on iOS, Android, macOS and Windows, wg-quick on Linux, and routers that speak WireGuard. Scan the QR code from the peer's Configuration tab, or download the .conf. The default configuration routes everything through the tunnel; change Client routes on the peer (or the default under Settings) to the tunnel subnet alone for split tunnelling.

API

Everything the console does goes through /api/… with the session cookie. GET /api/peers, POST /api/peers, GET /api/peers/{id}/config, POST /api/peers/{id}/disable and friends are stable enough to script against; the shapes are in internal/server/api.go. A cross-site request without a same-origin Sec-Fetch-Site or Origin header is refused, so call it from the same origin or from a non-browser client.

Building from source

cd web && npm ci && npm run build && cd ..
go build ./cmd/ihasvpn

The UI is embedded in the binary. docker build -t ihasvpn . does both steps. See CONTRIBUTING.md for the development loop against the mock data plane, which needs no privileges.

Licence

AGPL-3.0-or-later. See LICENSE.