Managing Host Services — This page outlines how to manage Nagios configured host services (services previously applied to a specific host).
Host Groups — Host Groups are an arbitrary collection of hosts into named sets. The usage of host groups simplifies access control, status displays, notifications, scheduling maintenance, multi-server commands, and reports.
Host Templates — Host templates store common object properties used to define multiple hosts. Host templates are used to reduce the number of repetitive entries when defining objects.