How to Change hostname with hostnamectl
Steps to Change Hostname for Linux
One-time Change
Side effect, ineffective after reboot
hostname {NEW host name}
Permanently Change
1 revise /etc/hosts
127.0.0.1 localhost {NEW host name}
2 revise /etc/sysconfig/network
HOSTNAME={NEW host name}
Using hostnamectl
hostnamectl set-hostname NAME
Conclusion
Changing the hostname for Linux is a straightforward process that can be done in a few simple steps. By following the steps outlined in this blog post, you can easily change the hostname of your Linux system.