timedatectl
timedatectl list-timezones | grep Asia
timedatectl set-timezone Asia/Shanghai
timedatectl list-timezones | grep UTC
timedatectl set-timezone UTC
; NTP
timedatectl set-ntp true
; timedatectl set-local-rtc true
systemctl status chrony
vi /etc/chrony.conf
hostname
hostnamectl --static set-hostname host-331582
vi /etc/selinux/config
echo 'SELINUX=disabled' >> /etc/selinux/config
echo '' >> /etc/selinux/config
.