What tools can I use to manage my free VMware ESXi license?
VMware recommends using VMware vSphere Client to manage VMware ESXi. You may also query the VMware ESXi host with the vSphere Command-Line Interface 4.0 (vCLI). Note that the free version of VMware ESXi does not allow any configuration changes for the VMware ESXi host through the vCLI. Further, managing a VMware ESXi host with VMware vCenter Server requires a VMware vCenter Server Agent license for each host, which is included in all editions of VMware vSphere.