lenovo-gentoo/BACKUP-SECURITY-STATUS.md

Backup & Security Implementation Status

Last Updated: 2025-11-07

Overview

Implementation of comprehensive backup system and security hardening for Gentoo workstation.

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Part 1: Backup System

✅ Completed Components

Backup Scripts

• backup-setup - Interactive management script

  • Location: /usr/local/bin/backup-setup
  • Functions: status, backup, list, logs, test
  • Status: ✅ Created and installed

• backup-full - Full system backup

  • Location: /usr/local/bin/backup-full
  • Excludes: caches, tmp, portage build dirs
  • Status: ✅ Created and installed

• backup-home - Home directory backup

  • Location: /usr/local/bin/backup-home
  • Backs up: /home/alexander
  • Status: ✅ Created and installed

• backup-incremental - Incremental backup

  • Location: /usr/local/bin/backup-incremental
  • Uses: rsync --link-dest for space efficiency
  • Status: ✅ Created and installed

• backup-configs - Configuration backup

  • Location: /usr/local/bin/backup-configs
  • Backs up: /etc, dotfiles, portage config, custom scripts
  • Status: ✅ Created and installed

Configuration

• backup.conf.example - Configuration template

  • Location: /usr/local/share/backup-setup/backup.conf.example
  • Status: ✅ Created

• backup.conf - Active configuration

  • Location: /etc/backup.conf
  • Status: ⚠️ NEEDS CONFIGURATION - Edit with NAS details

Logging

• Log file: /var/log/backup.log
• State directory: /var/lib/backup/
• Status: ✅ Created

⏳ Pending Components

ZSH Completion

• _backup-setup - ZSH autocompletion
  • Location: /usr/local/share/zsh/site-functions/_backup-setup
  • Status: ⏳ Not yet created

Network Trigger Service

• backup-monitor - OpenRC service
  • Watches for NAS availability on network
  • Triggers automatic backup when NAS detected
  • Cooldown mechanism to prevent spam
  • Status: ⏳ Not yet created

Documentation

• Backup-Setup.md - Complete backup guide
  • Installation instructions
  • Configuration guide
  • Usage examples
  • Troubleshooting
  • Status: ⏳ Not yet created

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Part 2: Security Hardening

⏳ All Components Pending

Firewall (nftables)

• nftables.conf - Firewall ruleset

  • Default deny incoming
  • Allow outgoing
  • Docker integration
  • Status: ⏳ Not yet created

• nftables OpenRC service

  • Auto-start at boot
  • Status: ⏳ Not yet created

Intrusion Detection

• fail2ban - SSH brute-force protection
  • SSH jail configuration
  • Auto-ban on failed attempts
  • Status: ⏳ Not yet created

System Hardening

• SSH hardening

  • Key-only authentication (optional)
  • fail2ban integration
  • Status: ⏳ Not yet created

• Audit & Monitoring

  • Log aggregation
  • File integrity monitoring (optional)
  • Status: ⏳ Not yet created

Documentation

• Security-Hardening.md - Security guide
  • Firewall configuration
  • fail2ban setup
  • SSH hardening
  • Monitoring setup
  • Status: ⏳ Not yet created

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Installation Steps

Current Step: Configure and Test Backup

1. Install backup scripts ✅ Done

   # Scripts installed to /usr/local/bin/
   # backup-setup, backup-full, backup-home, backup-incremental, backup-configs
   

2. Configure NAS connection ⚠️ DO THIS NOW

   sudo nvim /etc/backup.conf
   
   # Edit these values:
   # NAS_HOST="your-nas-hostname"
   # NAS_USER="your-backup-user"
   # NAS_PATH="/path/to/backup/dir"
   

3. Set up SSH key authentication ⚠️ REQUIRED

   # Generate SSH key if you don't have one
   ssh-keygen -t ed25519 -C "backup@gentoo-workstation"
   
   # Copy to NAS
   ssh-copy-id -p 22 backup-user@nas-hostname
   

4. Test connection

   backup-setup test
   

5. Test backup (configs - lightweight)

   backup-setup backup configs
   

6. Check backup status

   backup-setup status
   backup-setup list
   backup-setup logs
   

Next Steps

After successful backup test:

1. Create ZSH completion - For backup-setup autocompletion
2. Create network trigger - Automated backups when NAS detected
3. Implement firewall - nftables configuration
4. Set up fail2ban - SSH protection
5. Create documentation - Complete guides

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Testing Checklist

Backup System Testing

• Configuration file created (/etc/backup.conf)
• NAS details configured (host, user, path)
• SSH key authentication set up
• Connection test passes (backup-setup test)
• Config backup works (backup-setup backup configs)
• Backup appears on NAS (backup-setup list)
• Logs are written (backup-setup logs)
• Status shows last backup (backup-setup status)

Security Testing (Future)

• Firewall rules applied
• fail2ban active and monitoring
• SSH hardening verified
• Logs monitored

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Quick Reference

Backup Commands

# Show status
backup-setup status

# Test connection
backup-setup test

# Run backups
backup-setup backup configs      # Lightweight: configs only
backup-setup backup home         # Medium: home directory
backup-setup backup incremental  # Efficient: incremental changes
backup-setup backup full         # Complete: entire system

# View backups
backup-setup list

# View logs
backup-setup logs

File Locations

/usr/local/bin/backup-setup              # Main script
/usr/local/bin/backup-{full,home,incremental,configs}  # Worker scripts
/etc/backup.conf                         # Configuration
/var/log/backup.log                      # Logs
/var/lib/backup/last-backup              # Last backup timestamp
/usr/local/share/backup-setup/           # Resources

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Progress Summary

Backup System: 60% Complete

• ✅ All backup scripts created
• ✅ Configuration system created
• ✅ Logging set up
• ⏳ ZSH completion pending
• ⏳ Network trigger pending
• ⏳ Documentation pending

Security Hardening: 0% Complete

• ⏳ Firewall pending
• ⏳ fail2ban pending
• ⏳ SSH hardening pending
• ⏳ Documentation pending

Overall: 30% Complete

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Notes

• Backup system is functional and ready for testing
• Security hardening will begin after backup system is confirmed working
• Network trigger will be implemented using OpenRC service (not systemd)
• All scripts are POSIX sh compatible
• Follows same pattern as existing scripts (wifi-setup, audio-setup, etc.)