Control: Azure > CIS v4.0 > 03 - Analytics Services > 03.01 - Azure Databricks > 03.01.01 - Ensure that Azure Databricks is deployed in a customer-managed virtual network (VNet)

Configures auditing against a CIS Benchmark item.

Level: 1

Networking for Azure Databricks can be set up in a few different ways. Using a customer-managed Virtual Network (VNet) (also known as VNet Injection) ensures that compute clusters and control planes are securely isolated within the organization’s network boundary. By default, Databricks creates a managed VNet, which provides limited control over network security policies, firewall configurations, and routing.

Using a customer-managed VNet ensures better control over network security and aligns with zero-trust architecture principles. It allows for: - Restricted outbound internet access to prevent unauthorized data exfiltration. - Integration with on-premises networks via VPN or ExpressRoute for hybrid connectivity. - Fine-grained NSG policies to restrict access at the subnet level. - Private Link for secure API access, avoiding public internet exposure.