安装vim：rpm-qa|grepvimyum-yinstallvim*安装netstat：yum-yinstallnet-tools安装gcc：yum-yinstallgcc-c++ch查看监听port:netstat-给lntptifirewallfirewall-cmd添加一个开放的端口号--zone=public--add-port=80/tcp--permanent查看某个端口的开放状态firewall-cmd--zone=public--查询端口=80/tcp重新启动防火墙firewall-cmd--reload
