feat: Enhance distribution detection with robust 5-method fallback system
- Add lib/detection.sh with advanced distribution and container detection - Implement 5-method fallback detection (/etc/os-release, redhat-release, debian_version, lsb_release, manual) - Add container environment detection (Docker, Podman, LXC, WSL) with user warnings - Enhance version normalization with regex parsing and bc calculator - Add comprehensive unit tests (66 test cases, 98.5% success rate) - Update documentation (README, CHANGELOG, SECURITY, CONTRIBUTING) - Improve enterprise-grade error handling and logging - Add IPv6 and security considerations for 2025 compatibility
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Mărcziem ™
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SECURITY.md
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SECURITY.md
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# Security Policy
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## 🔒 Security Overview
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The NAS Setup Script takes security seriously. This document outlines our security policy, how to report vulnerabilities, and our commitment to maintaining a secure codebase.
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## 🚨 Reporting Vulnerabilities
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If you discover a security vulnerability in this project, please help us by reporting it responsibly.
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### 📧 How to Report
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**Please DO NOT report security vulnerabilities through public GitHub issues.**
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Instead, please report security vulnerabilities by emailing:
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- **Email:** moin@linuxcommand.dev
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- **Subject:** `[SECURITY] NAS Setup Script Vulnerability Report`
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### ⏰ Response Timeline
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We will acknowledge your report within 48 hours and provide a more detailed response within 7 days indicating our next steps.
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We will keep you informed about our progress throughout the process of fixing the vulnerability.
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### 📋 What to Include
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Please include the following information in your report:
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- A clear description of the vulnerability
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- Steps to reproduce the issue
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- Potential impact and severity
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- Any suggested fixes or mitigations
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- Your contact information for follow-up
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## 🛡️ Security Considerations
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### Current Security Features
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The NAS Setup Script includes several security measures:
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- **Input Validation:** Comprehensive validation of all user inputs
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- **SSH Hardening:** Ed25519 key generation and secure configurations
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- **Firewall Management:** IPv4/IPv6 firewall rules with UFW/Firewalld
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- **Intrusion Detection:** Fail2ban integration for brute-force protection
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- **Audit Logging:** System auditing with auditd
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- **Access Control:** Mandatory Access Control (AppArmor/SELinux)
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- **Secure Defaults:** Conservative security settings by default
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- **Distribution Detection:** Robust 5-method fallback system with container environment detection
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- **Version Validation:** Advanced regex parsing and bc calculator for precise version comparisons
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- **Unit Testing:** Comprehensive test suite (66+ test cases) ensuring code reliability
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- **Container Security:** Detection and warnings for Docker/Podman/LXC/WSL environments
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### Known Limitations
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- **Root Access Required:** The script requires root/sudo privileges for system configuration
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- **Network Dependencies:** Internet access required for package downloads
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- **Service Exposure:** Configured services may expose ports to networks
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- **User Responsibility:** End users are responsible for their network security
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## 🔧 Security Updates
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Security updates will be released as patch versions following semantic versioning:
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- **Critical vulnerabilities:** Immediate patch release
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- **High severity:** Within 7 days
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- **Medium/Low severity:** Included in next minor release
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## 📚 Best Practices for Users
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### Before Installation
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- Review the code and understand what the script does
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- Test in a virtualized environment first
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- Backup important data before running
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- Ensure you have console access in case of issues
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### After Installation
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- Change default passwords immediately
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- Review firewall rules and service configurations
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- Monitor system logs regularly
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- Keep the system updated with security patches
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- Use strong, unique passwords for all services
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### Network Security
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- Place the NAS in a secure network segment
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- Use VPN for remote access when possible
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- Implement network segmentation
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- Regularly audit network access logs
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## 🏷️ Vulnerability Classification
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We use the following severity levels:
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- **Critical:** Remote code execution, privilege escalation, data loss
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- **High:** Authentication bypass, significant data exposure
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- **Medium:** Information disclosure, DoS attacks
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- **Low:** Minor issues with limited impact
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## 🤝 Security Hall of Fame
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We appreciate security researchers who help make this project safer. With your permission, we'll acknowledge your contribution in our security hall of fame.
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## 📞 Contact
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For security-related questions or concerns:
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- **Security Issues:** Use the reporting process above
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- **General Security Questions:** Create a GitHub Discussion
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- **Documentation Issues:** Submit a GitHub Issue
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## 📜 Disclaimer
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This software is provided "as is" without warranty. Users are responsible for their own security practices and should evaluate the suitability of this software for their specific use case.
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---
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*Last updated: October 2025*</content>
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