Service Bus Relay Service

Does your on-premises system already include Windows Communication Foundation (WCF) services, SOAP services, or REST services that utilize HTTP(s) or TCP? If so, you can utilize Service Bus Relay Service to create externally accessible endpoints in the cloud that will serve as a proxy for your on-premises services.

Service Bus Relay allows you to host WCF services within your corporate network. Relay Service provides a function by which it becomes a communication agent listening for incoming sessions and service requests for these WCF services. This allows you to securely expose the end points to the cloud without needing to open up a firewall connection, placing the services in a DMZ, or creating a reverse proxy setup.

Relay Service has one of the harder jobs among all the Service Bus components. It has to deal with making very advanced communication scenarios easy. Internet connectivity is difficult. We throw all sorts of barriers into the mix. We have load balancers...