How can you change the host group of a host?

The ability to change the host group of a host is typically achieved by reinstalling the agent on that host. This process is essential because the configuration settings, including the host group assignment, are determined during the installation of the monitoring agent. By reinstalling the agent, you can specify a different host group in the configuration settings, allowing you to effectively move the host to a new group.

It's important to note that simply deleting the host would remove it from monitoring altogether, and thus would not change its group assignment. Using the control panel for such modifications might not offer the capability to change host groups directly, as this usually requires agent-level configuration adjustments. An automatic system update generally pertains to software updates or patches, not to the reassignment of hosts to different groups.