To monitor your application services and operating systems, complete all the prerequisites so that cloud proxy can communicate successfully with the target machines. What to read next Port Information and Communication with the Target MachinesPort information and communication details with the target machines to install the Telegraf agent from the UI or via the helper script is detailed on this page. Communication with Cloud Proxy and vCenter ServerComplete all the prerequisites required so that cloud proxy can communicate with vCenter Server. In the case of application monitoring high availability activated collector groups, these prerequisites are applicable for cloud proxies that are a part of the collector group. Communication with Cloud Proxy and Target MachinesComplete the prerequisites required during the handshake of cloud proxy with the target machines. User Account PrerequisitesThere are certain user account prerequisites required for the install of agents. Parent topic: OS and Application Monitoring