vi /etc/sysconfig/network-scripts/ifcfg-ens32
重启 network 网络服务
service network restart
systemctl status firewalld
systemctl start firewalld
systemctl disable firewalld
修改主机名与 IP 映射关系
vi /etc/hosts
查看工作目录(Print Working Directory)
pwd
切换工作目录(Change Directory)
cd [目录位置]
列表(List)显示目录内容
ls [选项]... [目录或文件名]