IP-HOP is a modern, self-hosted Dynamic DNS (DDNS) management system with multi-provider support, automatic IP monitoring, and a beautiful web dashboard.

• 🔄 Automatic IP Updates: Monitors your public IP and updates DNS records automatically
• 🌍 Multi-Provider Support: Cloudflare, Dynu, DuckDNS, No-IP, and extensible for more
• ⏰ Flexible Scheduling: Cron-based scheduling for each domain
• 🔐 Secure: Encrypted credentials, JWT authentication, HttpOnly cookies
• 📊 History Tracking: Complete audit trail of all IP changes
• 🎨 Modern UI: Beautiful Next.js dashboard with real-time updates
• 🐳 Docker Ready: One-command deployment with Docker Compose
• ✅ Fully Tested: 107 backend + 68 frontend tests with 100% pass rate

• Docker & Docker Compose
• Domain(s) to manage
• API credentials from your DNS provider

git clone https://github.com/Taoshan98/ip-hop.git
cd ip-hop

cp .env.example .env
# Edit .env with your settings

Required variables:

SECRET_KEY=your-random-secret-key-here
ENCRYPTION_KEY=your-32-byte-base64-encryption-key

Generate keys:

# SECRET_KEY
openssl rand -hex 32

# ENCRYPTION_KEY (must be 32 bytes)
python3 -c "from cryptography.fernet import Fernet; print(Fernet.generate_key().decode())"

docker-compose up -d

Open http://localhost:3000

First-time setup:

1. Navigate to /setup
2. Create admin account
3. Add DNS providers
4. Configure domains
5. Set update schedules

ip-hop/
├── backend/          # FastAPI backend
│   ├── app/         # Application code
│   │   ├── api/     # REST API endpoints
│   │   ├── core/    # Security, config
│   │   ├── models/  # SQLAlchemy models
│   │   ├── providers/ # DNS provider implementations
│   │   └── services/  # Business logic
│   ├── database/    # SQLite database
│   └── tests/       # 107 comprehensive tests
│
├── frontend/        # Next.js frontend
│   ├── src/
│   │   ├── app/     # Next.js 14 app router
│   │   ├── components/ # React components
│   │   ├── context/ # Auth context
│   │   └── lib/     # Utilities, API client
│   └── __tests__/   # 68 comprehensive tests
│
└── docker-compose.yml  # Deployment config

• Framework: FastAPI (Python 3.12)
• Database: SQLite with SQLAlchemy ORM
• Authentication: JWT tokens with HttpOnly cookies
• Security: Fernet encryption for credentials
• Scheduling: APScheduler with Cron expressions
• HTTP Client: httpx (async)
• Testing: pytest (107 tests, 100% pass rate)

• Framework: Next.js 14 (React 19)
• Language: TypeScript
• Styling: Tailwind CSS
• Components: Radix UI primitives
• State: React Query for server state
• HTTP Client: Axios
• Testing: Jest + React Testing Library (68 tests)

• Containerization: Docker (multi-stage builds)
• CI/CD: GitHub Actions
• Security Scanning: Trivy
• Image Registry: GitHub Container Registry (GHCR)

• Backend Documentation - API endpoints, models, providers
• Frontend Documentation - Components, pages, architecture
• Release Management - Versioning and release process

See Backend Documentation for implementation guide.

• Encrypted Storage: Credentials encrypted at rest with Fernet
• JWT Authentication: Secure token-based auth
• HttpOnly Cookies: XSS protection
• Non-root Docker: Runs as user iphop:1000
• Security Scanning: Automated Trivy scans in CI/CD
• No Hardcoded Secrets: Environment-based configuration

• POST /api/v1/auth/setup - Initial admin setup
• POST /api/v1/auth/token - Login
• POST /api/v1/auth/logout - Logout
• GET /api/v1/auth/me - Current user

• GET /api/v1/providers - List providers
• POST /api/v1/providers - Add provider
• PUT /api/v1/providers/{id} - Update provider
• DELETE /api/v1/providers/{id} - Remove provider

• GET /api/v1/domains - List domains
• POST /api/v1/domains - Add domain
• PUT /api/v1/domains/{id} - Update domain
• POST /api/v1/domains/{id}/update_ip - Force update
• GET /api/v1/domains/{id}/history - Update history

Full API docs: Backend README

cd backend
python -m pytest tests/ -v
# 107 tests, 100% pass rate

cd frontend
npm test
# 68 tests, 100% pass rate

# Backend
cd backend && pytest --cov=app tests/

# Frontend  
cd frontend && npm test -- --coverage

1. Set environment variables:

SECRET_KEY="your-secret-key-here" #openssl rand -hex 32
ENCRYPTION_KEY="your-encryption-key-here" #python3 -c 'from cryptography.fernet import Fernet; print(Fernet.generate_key().decode())'

2. Start the application:

docker-compose up -d

Permissions: You may be asked to change ownership of the newly created directory if you are running docker as root and creating folders via docker compose

sudo chown -R $USER:$USER ip-hop/

3. Access the application:

• Frontend: http://localhost:3000
• Backend API: http://localhost:8001
• API Docs: http://localhost:8001/docs

docker pull ghcr.io/taoshan98/ip-hop:latest

docker run -d \
  --name iphop \
  -p 8001:8001 \
  -p 3000:3000 \
  -e SECRET_KEY="your-secret-key" \
  -e ENCRYPTION_KEY="your-encryption-key" \
  -v iphop-data:/app/backend/database \
  ghcr.io/taoshan98/ip-hop:latest

# Backend
cd backend
python -m venv .venv
source .venv/bin/activate
pip install -r requirements.txt
uvicorn app.main:app --host 0.0.0.0 --port 8001

# Frontend
cd frontend
npm install
npm run build
npm start

• Base Image: Alpine Linux (minimal size)
• Size: ~200MB (optimized multi-stage build)
• Platforms: linux/amd64, linux/arm64
• User: Non-root (iphop:1000)
• Health Check: Built-in monitoring

• /app/backend/database - Persistent database storage

• 8001 - Backend API (FastAPI/Uvicorn)
• 3000 - Frontend (Next.js)

• ✅ Non-root user execution
• ✅ Minimal Alpine base image
• ✅ Multi-stage build (smaller attack surface)
• ✅ Security scanning with Trivy
• ✅ No hardcoded secrets
• ✅ Health checks enabled

The GitHub Actions workflow automatically:

1. On Pull Request:

   • Runs backend tests (pytest)
   • Builds frontend
   • Validates Docker build

2. On Main Branch Push:

   • Runs all tests
   • Builds multi-architecture images (amd64, arm64)
   • Pushes to GitHub Container Registry
   • Scans for vulnerabilities (Trivy)
   • Creates semantic version tags (1.0.0, 1.0, 1, latest)

View logs:

docker compose logs -f

Stop the application:

docker-compose down
# or
docker stop iphop

Container won't start:

docker compose logs iphop

Health check failing:

docker inspect iphop-app | grep Health -A 10

Database issues:

docker exec -it iphop-app ls -la /app/backend/database

1. Use volume for database persistence
2. Set strong SECRET_KEY and ENCRYPTION_KEY
3. Use reverse proxy (nginx/traefik) for SSL
4. Enable Docker resource limits
5. Monitor container health
6. Regular backups of database volume

*/5 * * * *   # Every 5 minutes
0 */1 * * *   # Every hour
0 0 * * *     # Daily at midnight
0 */6 * * *   # Every 6 hours

IP-HOP follows Semantic Versioning:

• v1.0.0 - Initial stable release
• See CHANGELOG.md for version history
• See RELEASE.md for release process

Contributions welcome! Please:

1. Fork the repository
2. Create a feature branch
3. Write tests for new features
4. Ensure all tests pass
5. Submit a pull request

MIT License - see LICENSE file

• FastAPI for the excellent backend framework
• Next.js for the modern React framework
• Cloudflare and Dynu for DNS services
• All open-source contributors

• Issues: GitHub Issues
• Discussions: GitHub Discussions

Made with ❤️ for easier DDNS management