What is Azure Private Endpoint?

An Azure Private Endpoint is a network interface that provides a private IP address from an Azure Virtual Network (VNet) to an Azure service, allowing applications to access that service through a private network connection rather than its public endpoint.

Technically, Private Endpoint uses Azure Private Link to establish private connectivity to supported Azure services such as Azure Storage, Azure SQL Database, Azure Key Vault, Azure Cosmos DB, and others.

How it works

For example, suppose an application running inside an Azure VNet needs to access Azure SQL.

Without Private Endpoint:

Application → Public Azure SQL endpoint → Azure SQL

With Private Endpoint:

Application → VNet → Private Endpoint → Azure SQL

The application resolves the service name to a private IP address, and traffic stays on Microsoft's private network rather than requiring access through the public internet.

Key components

• Private Endpoint – Network interface with a private IP in your VNet.
• Private Link – Technology that enables private connectivity to the service.
• Private DNS Zone – Often used to ensure the service's normal DNS name resolves to the private IP.
• Network controls – NSGs, routing, firewalls, and other network controls can be used according to the architecture.

Why enterprises use it

Private Endpoints are particularly valuable when organizations need to:

• Reduce public exposure of PaaS services
• Meet security and compliance requirements
• Restrict access to resources from specific VNets
• Integrate Azure services with private corporate networks
• Build zero-trust-oriented architectures

Expert point: A Private Endpoint does not automatically secure the entire application. Identity, authorization, DNS, network routing, firewall rules, and data protection still need to be designed correctly.