REST access to page blobs is protected by network rules.Ĭlassic storage accounts do not support firewalls and virtual networks. Virtual machine disk traffic (including mount and unmount operations, and disk IO) is not affected by network rules. SAS tokens that grant access to a specific IP address serve to limit the access of the token holder, but don't grant new access beyond configured network rules. Once network rules are applied, they're enforced for all requests. To access data using tools such as the Azure portal, Storage Explorer, and AzCopy, explicit network rules must be configured. Network rules are enforced on all network protocols for Azure storage, including REST and SMB. The process of approving the creation of a private endpoint grants implicit access to traffic from the subnet that hosts the private endpoint. You don't need any firewall access rules to allow traffic for private endpoints of a storage account. Storage firewall rules apply to the public endpoint of a storage account. Storage firewall rules can be applied to existing storage accounts, or when creating new storage accounts. You can combine firewall rules that allow access from specific virtual networks and from public IP address ranges on the same storage account. This configuration enables you to build a secure network boundary for your applications. You can also configure rules to grant access to traffic from selected public internet IP address ranges, enabling connections from specific internet or on-premises clients. Then, you should configure rules that grant access to traffic from specific VNets. To secure your storage account, you should first configure a rule to deny access to traffic from all networks (including internet traffic) on the public endpoint, by default. To learn how to migrate to the Az PowerShell module, see Migrate Azure PowerShell from AzureRM to Az. See Install Azure PowerShell to get started. To interact with Azure, the Azure Az PowerShell module is recommended. When a blob container is configured for anonymous public access, requests to read data in that container do not need to be authorized, but the firewall rules remain in effect and will block anonymous traffic. Authorization is supported with Azure Active Directory (Azure AD) credentials for blobs and queues, with a valid account access key, or with an SAS token. Your storage firewall configuration also enables select trusted Azure platform services to access the storage account securely.Īn application that accesses a storage account when network rules are in effect still requires proper authorization for the request. You can also use the firewall to block all access through the public endpoint when using private endpoints. The Azure storage firewall provides access control for the public endpoint of your storage account. You can also create Private Endpoints for your storage account, which assigns a private IP address from your VNet to the storage account, and secures all traffic between your VNet and the storage account over a private link. Storage accounts have a public endpoint that is accessible through the internet. You can limit access to your storage account to requests originating from specified IP addresses, IP ranges, subnets in an Azure Virtual Network (VNet), or resource instances of some Azure services. When network rules are configured, only applications requesting data over the specified set of networks or through the specified set of Azure resources can access a storage account. This model enables you to secure and control the level of access to your storage accounts that your applications and enterprise environments demand, based on the type and subset of networks or resources used. Azure Storage provides a layered security model.
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