terialize" >> ~/.ssh/authorized_keys
    echo "ssh-ed25519 AAAA...hLYV materialize" >> ~/.ssh/authorized_keys
    ```

1. Back in the SQL client connected to Materialize, validate the SSH tunnel connection you created using the [`VALIDATE CONNECTION`](/sql/validate-connection) command:

    ```mzsql
    VALIDATE CONNECTION ssh_connection;
    ```

    If no validation error is returned, move to the next step.

1. Use the [`CREATE SECRET`](/sql/create-secret/) command to securely store the password for the `