Chapter 2. Discovering Devices

I assume that many of you already have a working Zenoss Core installation with devices in your inventory; however, adding devices is the easy part. Before we jump to monitoring, we need to think about how we will monitor. For example, we can use Simple Network Management Protocol (SNMP), Windows Management Instrumentation (WMI), or command-line plugins that run over SSH/Telnet. Each of your monitored devices may have different requirements. We'll review each of the monitoring protocols to help you decide how to monitor your devices with Zenoss Core.

Because our Zenoss Core server needs to communicate with our monitored devices, we will need to configure those devices to allow connections on various TCP and UDP ports.

The order in which you perform the items in this chapter is not important. If you are starting a new installation, then it makes sense to prepare your devices to be monitored before you add them to your inventory. If you've already added devices...