AzureConceptBeginner · 3 min read

What is Private Endpoint in Azure: Simple Explanation and Example

A private endpoint in Azure is a network interface that connects you privately and securely to an Azure service using a private IP address from your virtual network. It keeps traffic within your network, avoiding exposure to the public internet for better security and control.

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How It Works

Imagine your Azure service like a house in a big city. Normally, to visit this house, you have to go through public roads where anyone can see you. A private endpoint is like a secret private tunnel that connects your home directly to that house without stepping outside into the public streets.

This private tunnel uses a private IP address inside your own virtual network, so your data travels safely and privately. It stops your traffic from going over the public internet, reducing risks like hacking or data leaks.

Behind the scenes, Azure creates a special network interface linked to the service, which acts as this private tunnel endpoint. Your resources in the virtual network use this interface to communicate securely with the Azure service.

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Example

This example shows how to create a private endpoint for an Azure Storage Account using Azure CLI. It connects the storage account privately to your virtual network.

bash

az network private-endpoint create \
  --name myPrivateEndpoint \
  --resource-group myResourceGroup \
  --vnet-name myVnet \
  --subnet mySubnet \
  --private-connection-resource-id /subscriptions/00000000-0000-0000-0000-000000000000/resourceGroups/myResourceGroup/providers/Microsoft.Storage/storageAccounts/mystorageaccount \
  --group-ids blob \
  --connection-name myConnection

Output

Private endpoint 'myPrivateEndpoint' created successfully and connected to storage account 'mystorageaccount'.

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When to Use

Use a private endpoint when you want to keep your Azure service traffic secure and isolated from the public internet. This is important for sensitive data or compliance rules.

For example, if you have a database or storage account with confidential information, a private endpoint ensures only your virtual network can access it. It also helps when you want to reduce exposure to internet threats or control access tightly.

Common use cases include connecting to Azure SQL Database, Azure Storage, Azure Key Vault, or any service that supports private endpoints to improve security and network isolation.

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Key Points

Private endpoints use private IPs from your virtual network to connect securely.
They keep traffic off the public internet, improving security.
Supported by many Azure services like Storage, SQL, and Key Vault.
They help meet compliance and data protection requirements.
Setup requires configuring virtual network and subnet permissions.

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Key Takeaways

A private endpoint connects Azure services privately using your virtual network's IP address.

It keeps data traffic secure by avoiding the public internet.

Use private endpoints to protect sensitive data and meet compliance needs.

Many Azure services support private endpoints for secure access.

Creating a private endpoint involves linking a network interface to your service inside your virtual network.