Linux系统管理---训练

训练1查看当前启动模式# 查看默认启动目标systemctl get-default# 查看系统所有服务状态systemctl list-units --typeservice | head -20训练2切换启动模式# 临时切换到命令行模式systemctl isolate multi-user.target# 临时切换到图形界面systemctl isolate graphical.target训练3管理Apache服务# 安装Apache如果没有yum install -y httpd# 启动Apachesystemctl start httpd# 查看Apache状态systemctl status httpd# 设置Apache开机启动systemctl enable httpd# 关闭Apache开机启动systemctl disable httpd训练4修改主机名# 查看当前主机名hostname# 修改主机名为student-serverhostnamectl set-hostname student-server# 重新登录后生效hostname # 验证