ms.author: kenwith
manager: dougeby
ms.topic: how-to
ms.date: 02/21/2025
ms.service: global-secure-access
ai-usage: ai-assisted
---
# Understand the Microsoft Entra private network connector
Connectors are what make Microsoft Entra Private Access and application proxy possible. They're simple, easy to deploy and maintain, and super powerful. This article discusses what connectors are, how they work, and some suggestions for how to optimize your deployment.
## What is a private network connector?
Connectors are lightweight agents that sit in a private network and facilitate the outbound connection to the Microsoft Entra Private Access and application proxy services. Connectors must be installed on a Windows Server that has access to the backend resources. You can organize connectors into connector groups, with each group handling traffic to specific resources. For more information on application proxy and a diagrammatic representation of application proxy architecture, see [Using Microsoft Entra application proxy to publish on-premises apps for remote users](../identity/app-proxy/overview-what-is-app-proxy.md).
To learn how to configure the Microsoft Entra private network connector, see [How to configure private network connectors for Microsoft Entra Private Access](how-to-configure-connectors.md).
Private network connectors are lightweight agents deployed on-premises that facilitate the outbound connection to the application proxy service in the cloud. The connectors must be installed on a Windows Server that has access to the backend application. Users connect to the application proxy cloud service that routes their traffic to the apps via the connectors.
ms.author: kenwith
manager: dougeby
ms.topic: how-to
ms.date: 09/25/2025
ms.service: global-secure-access
ai-usage: ai-assisted
---
# Understand Microsoft Entra private network connector
Connectors make Microsoft Entra Private Access and Application Proxy possible. They're simple to deploy and maintain, and powerful. This article explains what connectors are, how they work, and how to optimize your deployment.
## What is a private network connector?
Private network connectors are lightweight agents you install on a Windows Server inside your network. They create outbound connections to Microsoft Entra Private Access and the application proxy service to reach backend resources. Organize connectors into connector groups that handle traffic for specific resources. For an architecture overview, see [Using Microsoft Entra application proxy to publish on-premises apps for remote users](../identity/app-proxy/overview-what-is-app-proxy.md). To set them up, see [How to configure private network connectors for Microsoft Entra Private Access](how-to-configure-connectors.md). Users connect to the cloud service, which routes traffic to apps through the connectors.
Set up and register a connector with the application proxy service:
1. Open outbound ports 80 and 443 and allow access to the required service and Microsoft Entra ID URLs.
1. Sign in to the Microsoft Entra admin center and run the installer on an on-premises Windows Server.
1. Start the connector so it listens to the application proxy service.