# Backup & Security Implementation Status

**Last Updated**: 2025-11-07

## Overview

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

---

## 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

---

## 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

---

## Installation Steps

### Current Step: Configure and Test Backup

1. **Install backup scripts** ✅ Done
   ```bash
   # Scripts installed to /usr/local/bin/
   # backup-setup, backup-full, backup-home, backup-incremental, backup-configs
   ```

2. **Configure NAS connection** ⚠️ **DO THIS NOW**
   ```bash
   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**
   ```bash
   # 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**
   ```bash
   backup-setup test
   ```

5. **Test backup (configs - lightweight)**
   ```bash
   backup-setup backup configs
   ```

6. **Check backup status**
   ```bash
   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

---

## 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

---

## Quick Reference

### Backup Commands

```bash
# 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
```

---

## 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

---

## 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.)