Which command defines the host ID source in Dynatrace OneAgent?

The command that defines the host ID source in Dynatrace OneAgent is indeed the one that starts with ./Dynatrace-OneAgent-Linux.sh. This command specifically utilizes the --set-host-id-source option, which allows users to specify how the host ID is determined. In this context, using ip-addresses;namespace=test indicates that the identification of the host will be based on IP addresses within a particular namespace called "test."

This capability is crucial for environments where unique identification of hosts is necessary for monitoring purposes, especially in dynamic infrastructures such as cloud environments. By properly setting the host ID source, administrators can ensure that each instance or container is recognized and tracked correctly by Dynatrace, leading to more accurate monitoring and analytics.

The other options serve different functions that are not related to defining the host ID source; for example, one retrieves the current host ID, while others deal with setting host groups or removing host properties. Each of these options has its specific audience and use case within the Dynatrace toolset but does not address the fundamental requirement of defining how the host is identified.