For more details step by step tutorial, please visit my site "https://cloudlinuxtech.com/how-to-cha...". You will get more details about aftermaths of changing hostname and about dependent services in the environment.
if you want to know, how to install Centos 8 without any mess up - visit my post or youtube link as follows -
youtube - • How to Install CentOS in VMware works...
Post - https://cloudlinuxtech.com/install-ce...