Cara mengganti hostname vps centos 7

Cek Hostname Lama
[root@opensg ~]# hostname
opensg.waliweb.com
Edit System Network
[root@opensg ~]# nano /etc/sysconfig/network
Edit Host
[root@opensg ~]# nano /etc/hosts
Tetapkan Hostname baru
[root@opensg ~]# hostnamectl set-hostname sgvm.waliweb.com
Cek Status perubahan
[root@opensg ~]# hostnamectl status

Link Referensi tambahan:
https://www.itzgeek.com/how-tos/linux/centos-how-tos/change-hostname-in-centos-7-rhel-7.html