What type of connections do calls to unmonitored hosts represent?

Connections to unmonitored hosts typically represent calls resolved to private internal IP addresses. These are often part of a private network where monitoring tools like Dynatrace may not be able to access data. In such cases, the calls are made to internal services that are crucial for the overall architecture but are not under direct monitoring due to reasons like security policies, lack of agent deployment, or the nature of the service being internal.

When a connection is made to an unmonitored host, it signifies that while the application or service is reliant on this internal service for its operations, there is no visibility into performance metrics, latency, or errors associated with these connections. Thus, these internal IP addresses indicate that the application may be interacting with services that are not tracked by the monitoring system. This can pose challenges in diagnosing performance issues that could stem from these internal services since the data necessary for analysis is missing.