There are two service types. A service A which is spread across all nodes and a service B which is deployed only on a single node. Services communicate via web-socket using C#. Service A connects to service B. The connection is intra-cluster connection because service A is a public service and service B is an internal service.
In Windows ws:// could be used because DNS resolution is available. Since Linux is used, DNS resolution is not supported (yet?). How can I get similar functionality or at least an IP of the service B ?