Connect to an External MSSQL Database
By default, self-hosted instances of Bitwarden will use a Microsoft SQL Server (MSSQL) database created as a normal part of installation setup, however you configure Bitwarden to use an external MSSQL database.
Currently, self-hosted installations of Bitwarden support only MSSQL databases. Stay tuned for future updates on this topic.
To setup your self-hosted instance with an external database:
Create a new MSSQL database named
You must use
vaultas your database name. A different database name will cause migration to fail.
(Recommended) Create a dedicated DBO for your
As an administrator of your Bitwarden server, open the
global.override.envfile in an editor:
nano bwdata/env/global.override.envText Copied!
globalSettings__sqlServer__connectionString=value for the following information:
"Data Source=tcp:mssql,1443";with your MSSQL server name, for example
User ID=sa;with your DBO User ID.
Password=<default_pw>;with your DBO password.
Save your changes to
Start Bitwarden (
Once the above steps are complete, you can test the connection by creating a new user through the web vault and querying the external
vault database for creation of the new user.
If you need Bitwarden to validate your MSSQL database server's certificate, mount the certificate into your self-hosted Bitwarden server's containers. To do this:
Copy your root CA certificate into
./bitwarden.sh restartcommand to apply the certificate to your containers and restart your server.