New Guide: Securely Connect .NET Apps to Arc SQL Server 2022 with Azure AD
A comprehensive guide has been released, detailing secure connection practices for .NET Framework Windows Forms applications to Arc-enabled SQL Server 2022 instances using Microsoft Entra ID (Azure AD) authentication. The guide, covering user authentication, token management, and secure connection practices, includes code samples and screenshots.
The guide begins with essential security considerations, such as avoiding client secret storage in apps and using in-memory or encrypted disk token caches. It also emphasizes the use of user tokens for auditing and least privilege access.
Entra ID authentication is highlighted for its secure direct connections and efficient management of user credentials and access tokens. The Microsoft Authentication Library (MSAL) is used for user authentication with Microsoft Entra ID (Azure AD) credentials.
The guide walks users through connecting to SQL Server with an access token, fetching data into a DataGridView, and configuring Azure Arc SQL Server for Entra ID authentication. It also provides methods for user login and token caching options.
Prerequisites include Arc-enabled SQL Server 2022/2025, Entra ID tenant and app registration, a .NET Framework 4.6.2 Windows Forms app, and required NuGet packages.
The guide demonstrates a secure connection process, ensuring user authentication, token management, and secure database access. It serves as a practical resource for developers seeking to connect .NET Framework Windows Forms applications to Arc-enabled SQL Server instances using Entra ID authentication. The guide includes disclaimers about the sample scripts' support and liability.
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