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# Security Guide

This document outlines security best practices and configurations for the Home Assistant MCP Server.

## Authentication

### JWT Authentication

The server uses JWT (JSON Web Tokens) for API authentication:

    Authorization: Bearer YOUR_JWT_TOKEN

### Token Configuration

    security:
      jwt_secret: YOUR_SECRET_KEY
      token_expiry: 24h
      refresh_token_expiry: 7d

## Access Control

### CORS Configuration

Configure allowed origins to prevent unauthorized access:

    security:
      allowed_origins:
        - http://localhost:3000
        - https://your-domain.com

### IP Filtering

Restrict access by IP address:

    security:
      allowed_ips:
        - 192.168.1.0/24
        - 10.0.0.0/8

## SSL/TLS Configuration

### Enable HTTPS

    ssl:
      enabled: true
      cert_file: /path/to/cert.pem
      key_file: /path/to/key.pem

### Certificate Management

1. Use Let's Encrypt for free SSL certificates
2. Regularly renew certificates
3. Monitor certificate expiration

## Rate Limiting

### Basic Rate Limiting

    rate_limit:
      enabled: true
      requests_per_minute: 100
      burst: 20

### Advanced Rate Limiting

    rate_limit:
      rules:
        - endpoint: /api/control
          requests_per_minute: 50
        - endpoint: /api/state
          requests_per_minute: 200

## Data Protection

### Sensitive Data

- Use environment variables for secrets
- Encrypt sensitive data at rest
- Implement secure backup procedures

### Logging Security

- Avoid logging sensitive information
- Rotate logs regularly
- Protect log file access

## Best Practices

1. Regular Security Updates
2. Keep dependencies updated
3. Monitor security advisories

4. Apply patches promptly

5. Password Policies

6. Enforce strong passwords
7. Implement password expiration

8. Use secure password storage

9. Monitoring

10. Log security events
11. Monitor access patterns

12. Set up alerts for suspicious activity

13. Network Security

14. Use VPN for remote access
15. Implement network segmentation
16. Configure firewalls properly

## Security Checklist

- Configure SSL/TLS
- Set up JWT authentication
- Configure CORS properly
- Enable rate limiting
- Implement IP filtering
- Secure sensitive data
- Set up monitoring
- Configure backup encryption
- Update security policies

## Incident Response

1. Detection
2. Monitor security logs
3. Set up intrusion detection

4. Configure alerts

5. Response

6. Document incident details
7. Isolate affected systems

8. Investigate root cause

9. Recovery

10. Apply security fixes
11. Restore from backups
12. Update security measures

## Additional Resources

- Security Best Practices
- JWT Security
- SSL Configuration

February 6, 2025
February 6, 2025
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