How do I change the FQDN of my ESXi host to reflect on vCenter? Will this change allow me to type in the FQDN allow me to enter the name and IP to search for it as well ?do i change it from the ESXi client or from vCenter ?
This should help
VMware Knowledge Base
the key part you need to do in addition to what your looking at is to remove it from vcenter and add it using the new name,