摘要： 操作系统相关 立即关机: shutdown -h now 关闭防火墙：systemctl stop firewalld.service 开启防火墙：systemctl start firewalld.service 开机自启动：systemctl disable/enable firewalld.service 修改host文件： 用户相关 删除用户 userdel liuyanfei 添加用户 ... 阅读全文