系统下载
# 当前版本
https://www.centos.org
# 归档版本
https://vault.centos.org
https://archive.kernel.org/centos-vault
系统名称
查查系统版本
cat /etc/redhat-release
查看系统名称
hostnamectl
修改系统名称
hostnamectl set-hostname dev-c701
设置网络
修改配置文件vi /etc/sysconfig/network-scripts/ifcfg-ens33(静态P地址)
BOOTPROTO=static
ONBOOT=yes
IPADDR=10.10.20.101
NETMASK=255.255.254.0
GATEWAY=10.10.20.1
DNS1=114.114.114.114
重新加载网络配置
nmcli connection reload
系统时间
查看系统时间
timedatectl
查看系统时区
timedatectl list-timezones
timedatectl list-timezones | grep -i shanghai
设置系统时区
timedatectl set-timezone Asia/Shanghai
时间服务
chrony(CentOS 8 and CentOS 7)
yum info chrony
yum install chrony -y
systemctl start chronyd
systemctl enable chronyd
systemctl status chronyd
ntp(CentOS 6)
chkconfig ntpd on
chkconfig | grep ntpd
service ntpd start
service ntpd status
图形/命令行切换
# 安装图形
yum groupinstall "GNOME Desktop" -y
systemctl get-default
systemctl set-default graphical.target
systemctl set-default multi-user.target
登陆提示
/etc/motd