Setting up Duplicati - Hetzner Docs

Because of their scalability and high-availability, Buckets are a great option for storing backups.

Duplicati is an open-source, fast and secure backup program for local directories or files. It uses encryption to protect your backups, ensuring that only you can access the data. For more information about Duplicati, see:

Create your credentials

For a step-by-step guide, see the getting started article "Generating S3 credentials".

Make sure you save the credentials in a safe location right after you create them. You cannot view the secret key again, neither via Hetzner Console nor via API.

Install Duplicati

If you haven't already, install Duplicati now. You can follow the official instructions at docs.duplicati.com. You can find the .deb packages for GUI on GitHub.
```
sudo systemctl status duplicati
```
To start Duplicati via CLI, run:
```
sudo systemctl start duplicati
```
Click here to see how to login without a password

Make sure Duplicati is not running. Then start Duplicati without a password. You will get a URL with a token.
```
sudo systemctl stop duplicati
duplicati-server --no-admin-password --webservice-port=8200
```
The URL will look like this:
```
http://localhost:8200/signin.html?token=<your_token>
```

Create test files

On your local machine, create a new directory called restored and a new file called test-file.txt to test backups. Add some text in the test file.
```
home/
├── test-file.txt
└── restored/
```

Create a backup

In the Duplicati UI, navigate to Add backup in the left menu bar and select Add a new backup +.

01 new backup en

Enter the following information:

General backup settings
Backup name	Backup on Hetzner
Backup description	Hetzner Bucket
Encryption	AES-256 encryption, built in

Provide a password to encrypt your data. The data cannot be decrypted without this password.

Next, select S3 Compatible and fill in the following:

General backup settings
Bucket name	`<your_bucket_name>`
Folder path	duplicati (does not need to exist yet)
Server	`<location>.your-objectstorage.com`
Instruct Duplicati to use an SSL (https) connection	Enable this option
AWS Access Key ID	`<your_access_key>`
AWS Secret Access Key	`<your_secret_key>`

Under "Source Data", select the test-file.txt file you created.

In the final two stages, define when and how often a new backup should be created, and if or when old backups should be deleted.

After you select "Submit", the backup job should appear in "Home".

Restore backups

In the Duplicati UI, select "Restore" in the left menu bar. The list should include the backup job you just created (e.g. "Backup on Hetzner"). Click on "Restore" next to the name.
- In the dropdown, you can select the backup that should be restored. Right now, there is probably only one backup available.
  
  In the box below, you can choose the file(s) or folders you want to restore from the selected backup. If you used the example above, there will be only one file available.
  
  Select the file and click "Continue"
- For the location, tick "Pick location" and select the restored directory you just created. Below, you can keep "Overwrite" ticked.
After you select "Submit", the restored file should appear in the directory restored.
```
home/
├── test-file.txt
└── restored/
    └── test-file.txt
```

Your data should now be backed up automatically.