You have several ways to access vSphere components through vSphere interface options.

vSphere interface options include:

vSphere Client

A required component and the primary interface for creating, managing, and monitoring virtual machines, their resources, and their hosts. It also provides console access to virtual machines.

vSphere Client is installed on a Windows machine with network access to your ESX/ESXi or vCenter Server system installation. The interface displays slightly different options depending on which type of server you are connected to. While all vCenter Server activities are performed by a vCenter Server system, you must use the vSphere Client to monitor, manage, and control the server. A single vCenter Server system or ESX/ESXi host can support multiple, simultaneously connected vSphere Clients.

vSphere Web Access

A Web interface through which you can perform basic virtual machine management and configuration and get console access to virtual machines. It is installed with your ESX/ESXi host. Similar to the vSphere Client, vSphere Web Access works directly with a host or through vCenter Server. See the vSphere Web Access Administrator’s Guide for additional information.

VMware Service Console

A command-line interface for configuring an ESX host. For an ESXi host, use the vSphere Command-Line Interface.

vSphere Command-Line Interface

A command-line interface for configuring an ESXi host. The vSphere Command-Line Interface can also be used to perform Storage vMotion operations on both ESX/ESXi hosts.

See Starting and Stopping the vSphere Components for information and instructions about starting and stopping ESX hosts and vCenter Server.