Vaultwarden

SynoCommunity Vaultwarden package specific information

Vaultwarden is an alternative implementation of the Bitwarden server API, written in Rust. It is compatible with upstream Bitwarden clients and perfect for self-hosted deployment.

⚠️ HTTPS Requirement

Vaultwarden uses the Web Crypto API which requires a secure context (HTTPS). You must configure a reverse proxy with SSL before accessing the web interface, otherwise you will see a "secure context required" error.

Reverse Proxy Setup

Step 1: Create a Certificate (if needed)

• Go to Control Panel > Security > Certificate
• Add a certificate via Let's Encrypt or import your own

Step 2: Create Reverse Proxy Entry

Navigate to the Reverse Proxy settings:

• DSM 7: Control Panel > Login Portal > Advanced > Reverse Proxy
• DSM 6: Control Panel > Application Portal > Reverse Proxy

Click Create and configure as follows:

Field	Value
Description	Vaultwarden
Source Protocol	HTTPS
Source Hostname	Your domain (e.g., vault.yourdomain.com)
Source Port	443 (or custom)
Destination Protocol	HTTP
Destination Hostname	localhost
Destination Port	8180

Step 3: Enable WebSocket Support

WebSocket is required for live sync between Bitwarden clients.

1. In the reverse proxy entry, go to the Custom Header tab
2. Click Create > WebSocket
3. Click Save to apply the configuration

Step 4: Assign Certificate

• Go to Control Panel > Security > Certificate
• Click Settings (DSM 7) or Configure (DSM 6)
• Assign your certificate to the Vaultwarden reverse proxy entry

Alternative: Built-in TLS

If you prefer not to use a reverse proxy, Vaultwarden supports built-in TLS:

1. Generate or obtain SSL certificates (e.g., via Let's Encrypt)
2. Edit the environment file:

   /var/packages/vaultwarden/var/.env
   

3. Add or uncomment:

   ROCKET_TLS={certs="/path/to/certs.pem",key="/path/to/key.pem"}
   

4. Restart the package

Ports

Port	Protocol	Description
8180	TCP	Web interface and API

Configuration Files

File	Description
/var/packages/vaultwarden/var/.env	Environment configuration
/var/packages/vaultwarden/var/config.json	Runtime configuration (editable via admin UI)

Database Support

Vaultwarden supports multiple database backends:

• SQLite (default) - No additional configuration needed
• MySQL/MariaDB - Set DATABASE_URL in .env
• PostgreSQL - Set DATABASE_URL in .env

Admin Interface

The admin interface is available at /admin (e.g., https://vault.yourdomain.com/admin). You need the admin token set during installation to access it.

If you didn't copy the token during installation and want to disable admin access, edit /var/packages/vaultwarden/var/config.json and set:

"disable_admin_token": true

Troubleshooting

"Secure context required" error

Ensure you are accessing Vaultwarden via HTTPS. See the reverse proxy setup above.

WebSocket connection errors

Make sure WebSocket headers are configured in your reverse proxy.

Connection refused

Check that the package is running: Package Center > Vaultwarden > Run

External Resources

• Vaultwarden Wiki
• Bitwarden Help Center