Storage Local Users support container level permissions for authorization. Storage Local Users can be used to access blobs with SFTP or files with SMB. For more information, see Prevent anonymous public read access to containers and blobs. When anonymous public read access is disallowed, then users cannot configure containers to enable anonymous access, and all requests must be authorized. You can disallow anonymous public read access for a storage account. For more information, see Manage anonymous read access to containers and blobs. When anonymous access is configured, then clients can read blob data without authorization. For more information about Azure Files authentication using domain services, see the overview.Īnonymous public read access for containers and blobs. You can use a combination of Azure RBAC for share level access control and NTFS DACLs for directory/file level permission enforcement. SMB access to Files is supported using AD DS credentials from domain joined machines, either on-premises or in Azure. Your AD DS environment can be hosted in on-premises machines or in Azure VMs. Azure Files supports identity-based authorization over SMB through AD DS. On-premises Active Directory Domain Services (AD DS, or on-premises AD DS) authentication for Azure Files. For more information about Azure Files authentication using domain services, see the overview. You can use Azure RBAC for fine-grained control over a client's access to Azure Files resources in a storage account. Azure Files supports identity-based authorization over Server Message Block (SMB) through Azure AD DS. For more information about ABAC, see What is Azure attribute-based access control (Azure ABAC)? (preview).Īzure Active Directory Domain Services (Azure AD DS) authentication for Azure Files. For more information about RBAC, see What is Azure role-based access control (Azure RBAC)?. You can additionally use Azure attribute-based access control (ABAC) to add conditions to Azure role assignments for blob resources. You can use Azure role-based access control (Azure RBAC) to manage a security principal's permissions to blob, queue, and table resources in a storage account. For more information about Azure AD integration, see the articles for either blob, queue, or table resources. Microsoft recommends using Azure AD credentials to authorize requests to data when possible for optimal security and ease of use. For more information, see Using shared access signatures (SAS).Īzure Active Directory (Azure AD) integration for authorizing requests to blob, queue, and table resources. A service SAS or account SAS is signed with the account key, while the user delegation SAS is signed with Azure AD credentials and applies to blobs only. The signed URL specifies the permissions granted to the resource and the interval over which the signature is valid. Shared access signatures (SAS) provide limited delegated access to resources in a storage account via a signed URL. Shared access signatures for blobs, files, queues, and tables. For more information, see Prevent Shared Key authorization for an Azure Storage account. When Shared Key authorization is disallowed, clients must use Azure AD or a user delegation SAS to authorize requests for data in that storage account. Microsoft recommends that you disallow Shared Key authorization for your storage account. For more information, see Authorize with Shared Key. A client using Shared Key passes a header with every request that is signed using the storage account access key. Shared Key authorization for blobs, files, queues, and tables. Supported, credentials must be synced to Azure ADĮach authorization option is briefly described below: On-premises Active Directory Domain Services The following table describes the options that Azure Storage offers for authorizing access to data: Azure artifact Understand authorization for data operations Authorization ensures that the client application has the appropriate permissions to access a particular resource in your storage account. By default, every resource in Azure Storage is secured, and every request to a secure resource must be authorized. Each time you access data in your storage account, your client application makes a request over HTTP/HTTPS to Azure Storage.
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