7.0 KiB
7.0 KiB
🔐 Security Guidelines
Comprehensive security guidelines for homelab infrastructure
Overview
Security best practices and guidelines for maintaining a secure homelab environment while balancing usability and functionality.
Network Security
Network Segmentation
- VLAN isolation: Separate networks for different service tiers
- DMZ configuration: Isolated zone for public-facing services
- Management network: Dedicated network for administration
- IoT isolation: Separate network for IoT devices
Firewall Configuration
- Default deny: Block all traffic by default
- Explicit allow: Only permit required traffic
- Geo-blocking: Block traffic from suspicious countries
- Rate limiting: Prevent brute force attacks
VPN Security
- WireGuard: Modern, secure VPN protocol
- Tailscale: Zero-trust mesh networking
- Certificate-based auth: Strong authentication methods
- Regular key rotation: Periodic key updates
Access Control
Authentication
- Multi-factor authentication: Required for all admin access
- Strong passwords: Minimum complexity requirements
- Password managers: Centralized password management
- Biometric authentication: Where supported
Authorization
- Principle of least privilege: Minimal required permissions
- Role-based access: Defined user roles and permissions
- Regular access reviews: Periodic permission audits
- Automated deprovisioning: Remove unused accounts
Single Sign-On (SSO)
- Authentik integration: Centralized authentication
- SAML/OIDC: Standard authentication protocols
- Session management: Secure session handling
- Audit logging: Track authentication events
Container Security
Image Security
- Trusted registries: Use official/verified images
- Image scanning: Vulnerability assessment
- Minimal base images: Reduce attack surface
- Regular updates: Keep images current
Runtime Security
- Non-root containers: Run as unprivileged users
- Resource limits: Prevent resource exhaustion
- Network policies: Restrict container networking
- Security contexts: Apply security constraints
Secrets Management
- Docker secrets: Secure secret distribution
- Environment variables: Avoid secrets in env vars
- External secret stores: HashiCorp Vault integration
- Secret rotation: Regular secret updates
Data Protection
Encryption
- Data at rest: Encrypt stored data
- Data in transit: TLS/SSL for all communications
- Database encryption: Encrypt sensitive databases
- Backup encryption: Encrypt all backups
Backup Security
- 3-2-1 rule: 3 copies, 2 different media, 1 offsite
- Immutable backups: Prevent backup tampering
- Backup testing: Regular restore testing
- Access controls: Restrict backup access
Data Classification
- Public data: No special protection required
- Internal data: Standard protection measures
- Confidential data: Enhanced protection required
- Restricted data: Maximum protection measures
System Hardening
Operating System
- Minimal installation: Remove unnecessary packages
- Security updates: Automated security patching
- Service hardening: Secure service configurations
- Audit logging: Comprehensive system logging
SSH Security
- Key-based authentication: Disable password auth
- Non-standard ports: Change default SSH port
- Fail2ban: Automated intrusion prevention
- SSH hardening: Secure SSH configuration
Web Services
- HTTPS only: Force encrypted connections
- Security headers: Implement security headers
- Input validation: Sanitize all user input
- Rate limiting: Prevent abuse
Monitoring & Incident Response
Security Monitoring
- Log aggregation: Centralized log collection
- SIEM integration: Security information management
- Anomaly detection: Identify unusual activity
- Real-time alerts: Immediate threat notification
Vulnerability Management
- Regular scanning: Automated vulnerability scans
- Patch management: Timely security updates
- Risk assessment: Prioritize vulnerabilities
- Remediation tracking: Track fix implementation
Incident Response
- Response plan: Documented incident procedures
- Communication plan: Stakeholder notification
- Evidence preservation: Forensic data collection
- Post-incident review: Learn from incidents
Compliance & Governance
Security Policies
- Acceptable use: Define acceptable system use
- Data handling: Data protection procedures
- Access management: User access procedures
- Change management: Secure change processes
Documentation
- Security procedures: Document all procedures
- Configuration baselines: Standard configurations
- Risk assessments: Regular risk evaluations
- Audit trails: Maintain audit records
Training & Awareness
- Security training: Regular security education
- Phishing awareness: Social engineering protection
- Best practices: Promote security best practices
- Incident reporting: Encourage incident reporting
Physical Security
Hardware Protection
- Secure locations: Physical access controls
- Environmental controls: Temperature, humidity
- Power protection: UPS, surge protection
- Asset tracking: Hardware inventory management
Data Center Security
- Access controls: Restricted physical access
- Surveillance: Security cameras, monitoring
- Environmental monitoring: Temperature, humidity
- Fire suppression: Fire detection and suppression
Cloud Security
Cloud Services
- Shared responsibility: Understand security models
- Identity management: Cloud identity integration
- Data sovereignty: Data location requirements
- Vendor assessment: Evaluate cloud providers
Hybrid Security
- Consistent policies: Uniform security across environments
- Secure connectivity: Encrypted cloud connections
- Data classification: Consistent data handling
- Monitoring integration: Unified security monitoring
Regular Security Tasks
Daily Tasks
- Monitor alerts: Review security alerts
- Check logs: Review critical system logs
- Verify backups: Ensure backup completion
- Update awareness: Stay informed on threats
Weekly Tasks
- Vulnerability scans: Run security scans
- Access reviews: Review user access
- Patch assessment: Evaluate available patches
- Incident review: Review security incidents
Monthly Tasks
- Security metrics: Generate security reports
- Policy reviews: Review security policies
- Training updates: Update security training
- Vendor assessments: Review vendor security
Quarterly Tasks
- Risk assessments: Comprehensive risk evaluation
- Penetration testing: Security testing
- Disaster recovery: Test recovery procedures
- Security audits: Internal security audits
Status: ✅ Security guidelines implemented across all homelab systems