Use the vSphere Client to configure ESXi and vCenter Server settings. Configuring ESXi Hosts You can perform a variety of host configuration tasks when you connect directly to an ESXi host or vCenter Server system with the vSphere Client, such as setting the scratch partition, redirecting the direct console, and configuring syslog. Configuring vCenter Server in the vSphere ClientUse the vCenter Server Settings dialog box to configure licensing, statistics collection, logging and other settings. Configuring Communication Among ESXi, vCenter Server, and the vSphere ClientBy default, the vSphere Client uses ports 80 and 443 to communicate with vCenter Server and ESXi hosts. Reboot or Shut Down an ESXi HostYou can power off or restart (reboot) any ESXi host using the vSphere Client. Powering off a managed host disconnects it from vCenter Server, but does not remove it from the inventory.