seems to me that there was a way to change the ESX host name. Can anyone tell me how this is done?
see the below article
goto command prompt
Using a text editor, change the name and domain name, if applicable, of the host in the following files:
/etc/hosts
/etc/sysconfig/network
Execute this command where <hostname> is the new hostname for the ESX host:
esxcfg-advcfg -s <hostname> /Misc/HostName
Reboot the ESX host.