Hybrid connections/Azure/AZ-900

---

I'm not clear on what a hybrid connection is. Is this Microsoft explanation stating that once you set up an application to use a port and tcp endpoint that it will use the same port and tcp endpoint on another server to reach it's destination?

Within App Service, Hybrid Connections can be used to access application resources in any network that can make outbound calls to Azure over port 443. Hybrid Connections provides access from your app to a TCP endpoint and does not enable a new way to access your app. As used in App Service, each Hybrid Connection correlates to a single TCP host and port combination. This enables your apps to access resources on any OS, provided it is a TCP endpoint. The Hybrid Connections feature does not know or care what the application protocol is, or what you are accessing. It simply provides network access.

@John-DeWilde ,

Hybrid connections are used to allow an application access on-premises resources securely.

Imagine your organization has developed a web application and is hosting that app in Azure. That app needs access to a database that is running on an on-premises SQL server. Rather than expose the SQL server to the internet, and open firewall ports for SQL traffic, you can use hybrid connections that are quick and easy to set up and secure.

You would add a hybrid connection to the web application, and configure an endpoint and port (the SQL server and port 1433 for example)

Then you run the hybrid connection manager on the SQL server. When you run the manager and authenticate using your Azure account, you will see a list of hybrid connections from your subscription. Select the one you created in the web app and you are done.

The web app can now connect to the SQL server. The traffic from Azure (the web app) goes across 443, so usually no additional firewall rules are necessary. The hybrid connection maps the traffic to port 1433 on the SQL server. Easy and secure.

Ok, thank you. I think I understand.