1、firewalld的基本使用启动: systemctl start firewalld关闭: systemctl stop firewalld查看状态: systemctl status firewalld 开机禁用 : systemctl disable firewalld开机启用 : systemctl enable firewalld 2.systemctl是CentOS7的服务管理工具中主要的工具,它融合之前service和chkconfig的功能于一体。
启动一个服务:systemctl start firewalld.service
关闭一个服务:systemctl stop firewalld.service
重启一个服务:systemctl restart firewalld.service
显示一个服务的状态:systemctl status firewalld.service
在开机时启用一个服务:systemctl enable firewalld.service
在开机时禁用一个服务:systemctl disable firewalld.service
查看服务是否开机启动:systemctl is-enabled firewalld.service
查看已启动的服务列表:systemctl list-unit-files|grep enabled
查看启动失败的服务列表:systemctl –failed
3.配置firewalld-cmd查看版本: firewall-cmd –version查看帮助: firewall-cmd –help显示状态: firewall-cmd –state查看所有打开的端口: firewall-cmd –zone=public –list-ports更新防火墙规则: firewall-cmd –reload查看区域信息: firewall-cmd –get-active-zones查看指定接口所属区域: firewall-cmd –get-zone-of-interface=eth0拒绝所有包:firewall-cmd –panic-on取消拒绝状态: firewall-cmd –panic-off查看是否拒绝: firewall-cmd –query-panic 那怎么开启一个端口呢添加firewall-cmd –zone=public –add-port=80/tcp –permanent (–permanent永久生效,没有此参数重启后失效)重新载入firewall-cmd –reload查看firewall-cmd –zone= public –query-port=80/tcp删除firewall-cmd –zone= public –remove-port=80/tcp –permanent