how to change FQDN on the vCenter server

Hi guys,

        Who know the steps change the FQDN of vCenter server v5.10b , in my test environment , all of the component (SSO,Inventory Service,Web client,update manager,vcenter server,sql server 2008 ) are installed in an ibm x3650 physical server. ESXi 5.1.0a is installed in ibm x3850 physical server ,both vcenter server and esxi are the same FQDN, I want to change the FQDN  to other one, thanks!