Connect to an External MSSQL Database

Category: On-premises Hosting
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    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:

    1. Create a new MSSQL database named vault.


      You must use vault as your database name. A different database name will cause migration to fail.

    2. (Recommended) Create a dedicated DBO for your vault database.
    3. As an administrator of your Bitwarden server, open the global.override.env file in an editor:

      nano bwdata/env/global.override.env
    4. Edit the globalSettings__sqlServer__connectionString= value for the following information.

      • Replace "Data Source=tcp:mssql,1443"; with your MSSQL Server name, for example "Data Source=protocol:server_url,port".
      • Replace User ID=sa; with your DBO User ID.
      • Replace Password=<default_pw>; with your DBO password.
    5. Save your changes to global.override.env.
    6. Start Bitwarden (./ start).

    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.