What is difference between those two methods for changing host name on CentOS 7? I want to setup this centOS with a FQDN.
The first way is vi /etc/sysconfig/network and vi /etc/hosts files. but this way somehow wont work, after I changed the host name in this 2 locations, rebooted, run hostname it still shows me hostname as "localhost"
The second way after research is using hostnamectl set-hostname or hostname set-hostname xxx.xxx --static command.
If using 2nd way to change hostname, it modifies which file?
