Secure Data Sources in SQL Server Reporting Services

Authentication Methods

SSRS supports various authentication methods for connecting to data sources. The choice of method depends on your security requirements and the capabilities of the data source itself.

• Windows Authentication: Leverages existing Windows credentials. This is often the preferred method in Windows-integrated environments for seamless user experience and strong security.
• SQL Server Authentication: Uses SQL Server login credentials. This is suitable when Windows authentication is not feasible or desired.
• Prompt for Credentials: The report server prompts the user for credentials each time a report is viewed. This is useful for interactive scenarios but can be inconvenient for automated reporting.
• Credentials Stored Securely: Credentials are stored on the report server and used automatically. This requires careful management of the stored credentials.
• Null or Empty: No credentials are used. This is generally not recommended for sensitive data.

Configuring Data Source Security

You can configure data source security through the Report Server web portal or using SQL Server Management Studio (SSMS). The process typically involves:

1. Creating or Editing a Data Source: When defining a new data source or modifying an existing one, you'll specify connection properties and credential settings.
2. Selecting an Authentication Type: Choose the appropriate authentication method from the available options.
3. Providing Credentials: Depending on the authentication type, you may need to provide a username and password, select a Windows account, or configure prompt settings.
4. Testing the Connection: Always test the data source connection to ensure it's configured correctly and credentials are valid.

Using the Report Server Web Portal

1. Navigate to the report or shared data source in the web portal.
2. Click the ellipsis (...) and select "Manage."
3. Go to the "Data source" tab.
4. Under "Credentials," select your desired authentication method and provide the necessary information.
5. Click "Apply."

Using SQL Server Management Studio (SSMS)

1. Connect to your Report Server instance in SSMS.
2. Navigate to "Databases" > "ReportServer" > "DataSources."
3. Right-click on the data source you want to configure and select "Properties."
4. Configure the connection string and credentials as required.
5. Click "OK."

Best Practices for Secure Data Sources

• Principle of Least Privilege: Grant only the necessary permissions to the report server service account and to any accounts used for data source connections.
• Use Windows Authentication When Possible: Integrate with your existing Windows security infrastructure for better manageability and security.
• Avoid Storing Credentials in Reports: Whenever possible, use shared data sources with securely stored credentials or prompt for credentials.
• Regularly Review and Update Credentials: Ensure that credentials are not expired and that they are rotated periodically.
• Encrypt Sensitive Data: If your data source contains highly sensitive information, consider encrypting it at rest.
• Secure the Report Server Itself: Implement robust security measures for the report server infrastructure, including network security, access controls, and regular patching.

Related Topics

• Managing Reporting Services Security
• Securing Reports and Datasets
• Data Source Properties Dialog Box