1：课堂环境(DHCP取消)
foundationX物理机root用户，密码：Asimov kiosk用户密码redhat
classroomX虚拟机root用户，密码：Asimov
serverX和desktop虚拟机student用户密码:student
server和desktop虚拟机root用户密码：redhat17
2：各虚拟机IP地址：
classroomX:172.25.0.254/24
desktopX: 172.25.0.10/24
serverX: 172.25.0.11/24
如果手动修改了网卡配置文件，用命令 nmcli con reload 以便 NetworkManager能读取配置更改
3：管理虚拟机的命令：virt-manager
4：查看虚拟机的运行情况：virsh list
5：启动虚拟机
双击桌面图标：View Classroom /View Desktop/View Server
运用命令： rht-vmctl start classroom
rht-vmctl start desktop
rht-vmctl start server
6：重置虚拟机
rht-vmctl reset server
rht-vmctl reset desktop
rht-vmctl fullreset server
rht-vmctl fullreset desktop
7：停止虚拟机
rht-vmctl stop classroom
rht-vmctl stop desktop
rht-vmctl stop server
