VMware Tools is a base requirement of the virtual machine for non-credential based service discovery in a virtualization environment using vRealize Operations. Non-credential based service discovery leverages VMware Tools to discover services running on the virtual machines without requiring credentials. VMware Tools is a suite of utilities that enhances the performance and management of the virtual machines. It includes a service discovery plugin that enables vRealize Operations to collect information about the services and processes running on the virtual machines. The service discovery plugin uses netstat or ss commands to identify the services and their dependencies. VMware Tools also provides other benefits such as improved network and graphics performance, time synchronization, graceful power operations, and more. Therefore, VMware Tools is a base requirement of the virtual machine for non-credential based service discovery in vRealize Operations. References: Credential-Less Service Discovery with vRealize Operations; Service Discovery with VMware vRealize Operations; Service and Application Discovery