Infrastructure and application monitoring is shifting from an agent-based approach to an agentless one. Agentless monitoring holds the promise of cheaper and easier-to-maintain monitoring technology. Non-Windows systems is to use Virtual Agents to collect state and performance data from those resources. When using Virtual Agents, there is no necessity to deploy any software on the managed systems. Instead, REST API calls are made to the systems to capture data or invoke an action are made using common interfaces supported by the managed systems.