SnapGuard
SnapGuard 🛡️
A modern, secure, and user-friendly snapshot & backup manager for Linux using BtrFS and OverlayFS – a permissive alternative to Snapper.
Why SnapGuard?
SnapGuard is built for power users and Linux enthusiasts who want secure and transparent control over their BtrFS/OverlayFS snapshots. Unlike Snapper, SnapGuard features an intuitive GUI, fine-grained encryption, Polkit access control, and flexible snapshot retention strategies.
🔐 Main Features
Security
- AES-256-GCM file-level encryption
- PBKDF2 (100k iterations) key derivation
- HMAC-SHA256 file signing
- Secure key storage & separation of encryption/signing keys
- Integrity checks before export and during restoration
Snapshot Management
- Daily/weekly/monthly retention policies
- Configurable per subvolume
- Parallel snapshot creation for speed
Backup and Export
- SHA-256 checksums of complete backups
- Metadata preservation
- Target media flexibility
- Auto verification after export
User Interface
- GTK-based GUI
- Systemd integration
- Configure security & retention visually
Monitoring & Logging
- Audit log of all actions
- Success & error log separation
- Optional desktop and email notifications
📦 Installation
See INSTALL.md for setup instructions.
⚙️ Configuration (config.json)
{
"snapshot": {
"subvolumes": [
{
"path": "/",
"name": "root",
"enabled": true
}
],
"retention": {
"daily": 7,
"weekly": 4,
"monthly": 12
}
},
"security": {
"encryption": {
"enabled": true,
"algorithm": "aes-256-gcm"
},
"signing": {
"enabled": true
}
}
}
🛠️ Development
Dependencies
- Python 3.6+
- GTK 3.0
- BtrFS
- Systemd
- Polkit
Setup
git clone https://github.com/Pizzalord8345/SnapGuard.git
cd SnapGuard
pip install -r requirements.txt
🤝 Contributing
We welcome contributors! See CONTRIBUTING.md for more info.
📄 License
Apache 2.0 License – free for personal and commercial use.