Skip to main content
OSSAlt

How to Self-Host Headscale 2026

·OSSAlt Team
headscaletailscalevpnwireguardnetworkingself-hostingdocker2026
Share:

TL;DR

Headscale (BSD 3-Clause, ~18K GitHub stars, Go) is an open source, self-hosted implementation of the Tailscale coordination server. It lets you run your own Tailscale-compatible VPN mesh with all official Tailscale clients — macOS, Windows, iOS, Android, Linux. Tailscale's free tier is limited to 3 users and 100 devices; the Teams plan is $6/user/month. Headscale is free with unlimited users and devices. You run the control plane; WireGuard handles the actual encrypted tunnels between devices.

Key Takeaways

  • Headscale: BSD 3-Clause, ~18K stars — open source Tailscale control server
  • All official clients: Use the official Tailscale apps on iOS, Android, macOS, Windows, Linux
  • WireGuard mesh: Devices connect peer-to-peer via WireGuard — you don't proxy traffic
  • Unlimited users/devices: No per-seat pricing
  • Exit nodes: Route all internet traffic through a specific device
  • Split tunneling: Only route specific subnets through the VPN

How Tailscale / Headscale Works

Without Tailscale:
  Device A ←→ Internet ←→ Device B (blocked by NAT/firewall)

With Tailscale/Headscale:
  Device A ←→ [WireGuard encrypted tunnel] ←→ Device B
  (direct peer-to-peer after initial coordination)

Control plane (Headscale): Manages identity, key exchange, routing tables
Data plane (WireGuard): Encrypted p2p tunnels between devices

Part 1: Server Setup

Docker Setup

# docker-compose.yml
services:
  headscale:
    image: headscale/headscale:latest
    container_name: headscale
    restart: unless-stopped
    ports:
      - "8080:8080"     # gRPC/HTTP API
      - "9090:9090"     # Metrics
    volumes:
      - ./config:/etc/headscale
      - headscale_data:/var/lib/headscale
    command: headscale serve

volumes:
  headscale_data:

mkdir config

Configuration

# config/config.yaml
server_url: https://headscale.yourdomain.com

listen_addr: 0.0.0.0:8080
metrics_listen_addr: 0.0.0.0:9090

private_key_path: /var/lib/headscale/private.key
noise:
  private_key_path: /var/lib/headscale/noise_private.key

ip_prefixes:
  - fd7a:115c:a1e0::/48    # IPv6
  - 100.64.0.0/10           # IPv4 CGNAT range (Tailscale default)

derp:
  server:
    enabled: false          # Disable embedded DERP — use Tailscale's DERP or run your own
  urls:
    - https://controlplane.tailscale.com/derpmap/default

disable_check_updates: true

database:
  type: sqlite3
  sqlite:
    path: /var/lib/headscale/db.sqlite

log:
  level: info

docker compose up -d

HTTPS with Caddy

headscale.yourdomain.com {
    reverse_proxy localhost:8080
}

Part 2: Create Users

In Headscale, "users" are namespaces (one user per device group or person):

# Create a user:
docker exec headscale headscale users create alice

# List users:
docker exec headscale headscale users list

Part 3: Connect Devices

Linux (CLI)

# Install Tailscale client:
curl -fsSL https://tailscale.com/install.sh | sh

# Connect to your Headscale server instead of Tailscale:
sudo tailscale up \
  --login-server https://headscale.yourdomain.com \
  --accept-routes \
  --accept-dns=false

# This outputs a URL — register the device:
# https://headscale.yourdomain.com/register/MKEY:...

On the Headscale server, register the device:

# Get pending registration requests:
docker exec headscale headscale nodes register --user alice --key MKEY:your-machine-key

# List registered nodes:
docker exec headscale headscale nodes list

macOS / Windows / iOS / Android

  1. Install the official Tailscale app
  2. Not signed in yet → click "Sign in"
  3. The sign-in page appears
  4. Change server / Use a custom server → https://headscale.yourdomain.com
  5. A URL appears — register via Headscale CLI: 
    docker exec headscale headscale nodes register --user alice --key nodekey:...

Using Headscale UI (Optional)

Headscale UI adds a web GUI:

# Add to docker-compose.yml:
services:
  headscale-ui:
    image: ghcr.io/gurucomputing/headscale-ui:latest
    container_name: headscale-ui
    restart: unless-stopped
    ports:
      - "8082:80"

headscale.yourdomain.com {
    handle /web* {
        reverse_proxy localhost:8082
    }
    reverse_proxy localhost:8080
}

Part 4: Key Management

# Generate a pre-auth key (for automated device enrollment):
docker exec headscale headscale preauthkeys create \
  --user alice \
  --reusable \
  --expiration 24h

# Output: nodekey:your-preauth-key

# Use on device (no manual registration required):
sudo tailscale up \
  --login-server https://headscale.yourdomain.com \
  --auth-key nodekey:your-preauth-key

Pre-auth keys are useful for:

  • Automating server enrollment in Ansible/Terraform
  • Docker containers joining the tailnet

Part 5: Exit Nodes

Route all internet traffic through a specific device (like a home server):

On the exit node device:

sudo tailscale up --login-server https://headscale.yourdomain.com --advertise-exit-node

Approve on Headscale:

docker exec headscale headscale routes list
docker exec headscale headscale routes enable -r ROUTE_ID

On client devices:

# Route all traffic through the exit node:
sudo tailscale up --exit-node=100.64.0.1

# Or just specific subnets:
sudo tailscale up --advertise-routes=192.168.1.0/24

Part 6: Subnet Routing (Access Home Network)

Expose your home LAN to all Tailscale devices:

# On your home server:
sudo tailscale up \
  --login-server https://headscale.yourdomain.com \
  --advertise-routes=192.168.1.0/24

# Approve on Headscale:
docker exec headscale headscale routes enable -r ROUTE_ID

# On other devices — access home devices by their LAN IP:
# ssh 192.168.1.100  ← your home NAS, from anywhere

Part 7: DNS with MagicDNS

Tailscale's MagicDNS gives each device a name (alice-laptop.headscale.yourdomain.com):

# config/config.yaml
dns_config:
  magic_dns: true
  base_domain: vpn.yourdomain.com
  nameservers:
    - 1.1.1.1
    - 8.8.8.8
  override_local_dns: false

Devices are accessible via device-name.vpn.yourdomain.com from any Headscale node.

Maintenance

# Update Headscale:
docker compose pull
docker compose up -d

# Node management:
docker exec headscale headscale nodes list
docker exec headscale headscale nodes delete --identifier NODE_ID

# User management:
docker exec headscale headscale users list
docker exec headscale headscale users rename --name alice --new-name alice-work

# Backup (SQLite):
tar -czf headscale-backup-$(date +%Y%m%d).tar.gz \
  $(docker volume inspect headscale_headscale_data --format '{{.Mountpoint}}') \
  ./config/

# Logs:
docker compose logs -f headscale

Why Self-Host Headscale?

The case for self-hosting Headscale comes down to three practical factors: data ownership, cost at scale, and operational control.

Data ownership is the fundamental argument. When you use a SaaS version of any tool, your data lives on someone else's infrastructure subject to their terms of service, their security practices, and their business continuity. If the vendor raises prices, gets acquired, changes API limits, or shuts down, you're left scrambling. Self-hosting Headscale means your data and configuration stay on infrastructure you control — whether that's a VPS, a bare metal server, or a home lab.

Cost at scale matters once you move beyond individual use. Most SaaS equivalents charge per user or per data volume. A self-hosted instance on a $10-20/month VPS typically costs less than per-user SaaS pricing for teams of five or more — and the cost doesn't scale linearly with usage. One well-configured server handles dozens of users for a flat monthly fee.

Operational control is the third factor. The Docker Compose configuration above exposes every setting that commercial equivalents often hide behind enterprise plans: custom networking, environment variables, storage backends, and authentication integrations. You decide when to update, how to configure backups, and what access controls to apply.

The honest tradeoff: you're responsible for updates, backups, and availability. For teams running any production workloads, this is familiar territory. For individuals, the learning curve is real but the tooling (Docker, Caddy, automated backups) is well-documented and widely supported.

Server Requirements and Sizing

Before deploying Headscale, assess your server capacity against expected workload.

Minimum viable setup: A 1 vCPU, 1GB RAM VPS with 20GB SSD is sufficient for personal use or small teams. Most consumer VPS providers — Hetzner, DigitalOcean, Linode, Vultr — offer machines in this range for $5-10/month. Hetzner offers excellent price-to-performance for European and US regions.

Recommended production setup: 2 vCPUs with 4GB RAM and 40GB SSD handles most medium deployments without resource contention. This gives Headscale headroom for background tasks, caching, and concurrent users while leaving capacity for other services on the same host.

Storage planning: The Docker volumes in this docker-compose.yml store all persistent Headscale data. Estimate your storage growth rate early — for data-intensive tools, budget for 3-5x your initial estimate. Hetzner Cloud and Vultr both support online volume resizing without stopping your instance.

Operating system: Any modern 64-bit Linux distribution works. Ubuntu 22.04 LTS and Debian 12 are the most commonly tested configurations. Ensure Docker Engine 24.0+ and Docker Compose v2 are installed — verify with docker --version and docker compose version. Avoid Docker Desktop on production Linux servers; it adds virtualization overhead and behaves differently from Docker Engine in ways that cause subtle networking issues.

Network: Only ports 80 and 443 need to be publicly accessible when running behind a reverse proxy. Internal service ports should be bound to localhost only. A minimal UFW firewall that blocks all inbound traffic except SSH, HTTP, and HTTPS is the single most effective security measure for a self-hosted server.

Backup and Disaster Recovery

Running Headscale without a tested backup strategy is an unacceptable availability risk. Docker volumes are not automatically backed up — if you delete a volume or the host fails, data is gone with no recovery path.

What to back up: The named Docker volumes containing Headscale's data (database files, user uploads, application state), your docker-compose.yml and any customized configuration files, and .env files containing secrets.

Backup approach: For simple setups, stop the container, archive the volume contents, then restart. For production environments where stopping causes disruption, use filesystem snapshots or database dump commands (PostgreSQL pg_dump, SQLite .backup, MySQL mysqldump) that produce consistent backups without downtime.

For a complete automated backup workflow that ships snapshots to S3-compatible object storage, see the Restic + Rclone backup guide. Restic handles deduplication and encryption; Rclone handles multi-destination uploads. The same setup works for any Docker volume.

Backup cadence: Daily backups to remote storage are a reasonable baseline for actively used tools. Use a 30-day retention window minimum — long enough to recover from mistakes discovered weeks later. For critical data, extend to 90 days and use a secondary destination.

Restore testing: A backup that has never been restored is a backup you cannot trust. Once a month, restore your Headscale backup to a separate Docker Compose stack on different ports and verify the data is intact. This catches silent backup failures, script errors, and volume permission issues before they matter in a real recovery.

Security Hardening

Self-hosting means you are responsible for Headscale's security posture. The Docker Compose setup provides a functional base; production deployments need additional hardening.

Always use a reverse proxy: Never expose Headscale's internal port directly to the internet. The docker-compose.yml binds to localhost; Caddy or Nginx provides HTTPS termination. Direct HTTP access transmits credentials in plaintext. A reverse proxy also centralizes TLS management, rate limiting, and access logging.

Strong credentials: Change default passwords immediately after first login. For secrets in docker-compose environment variables, generate random values with openssl rand -base64 32 rather than reusing existing passwords.

Firewall configuration:

ufw default deny incoming
ufw allow 22/tcp
ufw allow 80/tcp
ufw allow 443/tcp
ufw enable

Internal service ports (databases, admin panels, internal APIs) should only be reachable from localhost or the Docker network, never directly from the internet.

Network isolation: Docker Compose named networks keep Headscale's services isolated from other containers on the same host. Database containers should not share networks with containers that don't need direct database access.

VPN access for sensitive services: For internal-only tools, restricting access to a VPN adds a strong second layer. A private WireGuard mesh network eliminates public internet exposure for sensitive internal tools.

Update discipline: Subscribe to Headscale's GitHub releases page to receive security advisory notifications. Schedule a monthly maintenance window to pull updated images. Running outdated container images is the most common cause of self-hosted service compromises.

Troubleshooting Common Issues

Container exits immediately or won't start

Check logs first — they almost always explain the failure:

docker compose logs -f headscale

Common causes: a missing required environment variable, a port already in use, or a volume permission error. Port conflicts appear as bind: address already in use. Find the conflicting process with ss -tlpn | grep PORT and either stop it or change Headscale's port mapping in docker-compose.yml.

Cannot reach the web interface

Work through this checklist:

  1. Confirm the container is running: docker compose ps
  2. Test locally on the server: curl -I http://localhost:PORT
  3. If local access works but external doesn't, check your firewall: ufw status
  4. If using a reverse proxy, verify it's running and the config is valid: caddy validate --config /etc/caddy/Caddyfile

Permission errors on volume mounts

Some containers run as a non-root user. If the Docker volume is owned by root, the container process cannot write to it. Find the volume's host path with docker volume inspect VOLUME_NAME, check the tool's documentation for its expected UID, and apply correct ownership:

chown -R 1000:1000 /var/lib/docker/volumes/your_volume/_data

High resource usage over time

Memory or CPU growing continuously usually indicates unconfigured log rotation, an unbound cache, or accumulated data needing pruning. Check current usage with docker stats headscale. Add resource limits in docker-compose.yml to prevent one container from starving others. For ongoing visibility into resource trends, deploy Prometheus + Grafana or Netdata.

Data disappears after container restart

Data stored in the container's writable layer — rather than a named volume — is lost when the container is removed or recreated. This happens when the volume mount path in docker-compose.yml doesn't match where the application writes data. Verify mount paths against the tool's documentation and correct the mapping. Named volumes persist across container removal; only docker compose down -v deletes them.

Keeping Headscale Updated

Headscale follows a regular release cadence. Staying current matters for security patches and compatibility. The update process with Docker Compose is straightforward:

docker compose pull          # Download updated images
docker compose up -d         # Restart with new images
docker image prune -f        # Remove old image layers (optional)

Read the changelog before major version updates. Some releases include database migrations or breaking configuration changes. For major version bumps, test in a staging environment first — run a copy of the service on different ports with the same volume data to validate the migration before touching production.

Version pinning: For stability, pin to a specific image tag in docker-compose.yml instead of latest. Update deliberately after reviewing the changelog. This trades automatic patch delivery for predictable behavior — the right call for business-critical services.

Post-update verification: After updating, confirm Headscale is functioning correctly. Most services expose a /health endpoint that returns HTTP 200 — curl it from the server or monitor it with your uptime tool.

Frequently Asked Questions

How much does it cost to self-host Headscale?

The primary cost is your server. A Hetzner CAX11 (2 vCPU ARM, 4GB RAM) runs about $5/month — enough for Headscale plus a few companion services. Add a domain ($12/year) and you're under $75/year for a complete self-hosted deployment. Compare that to SaaS pricing that typically starts at $5-15/user/month.

Can I run Headscale on a VPS with other services?

Yes. The docker-compose.yml above isolates Headscale on its own named Docker network. As long as your server has sufficient RAM and disk — 4GB RAM and 20GB disk handles most combinations — running multiple self-hosted services on one VPS is both practical and common. Tools like Dozzle and Portainer make monitoring multi-container setups manageable.

How do I migrate data if I switch servers?

Stop the Headscale container, export the Docker volumes (using docker run --rm -v VOLUME:/data -v $(pwd):/backup alpine tar czf /backup/backup.tar.gz /data), transfer to the new server, restore the volumes, and update your DNS. Most migrations complete in under an hour. Test the restoration on the new server before decommissioning the old one.

What happens if Headscale releases a breaking update?

Pin your docker-compose.yml to a specific image tag (e.g., image: headscale:1.2.3 instead of latest). Subscribe to the GitHub releases page for advance notice. When you're ready to upgrade, read the release notes, back up first, test on a staging instance, then update production.

Is Headscale suitable for production use?

Yes, with the hardening described above: reverse proxy for HTTPS, firewall rules, regular backups, and a pinned image tag. Many teams run Headscale in production successfully. The main requirement is treating your self-hosted instance with the same operational discipline you'd apply to any business-critical service.

See all open source networking and VPN tools at OSSAlt.com/categories/networking.

The SaaS-to-Self-Hosted Migration Guide (Free PDF)

Step-by-step: infrastructure setup, data migration, backups, and security for 15+ common SaaS replacements. Used by 300+ developers.

Join 300+ self-hosters. Unsubscribe in one click.