centos7防火墙设置

centos7防火墙设置

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、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

3、开启一个端口
添加

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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

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firewall-cmd --reload

查看

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firewall-cmd --zone= public --query-port=80/tcp

删除

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firewall-cmd --zone= public --remove-port=80/tcp --permanent

4、指定IP与端口

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firewall-cmd --permanent --add-rich-rule="rule family="ipv4" source address="10.40.107.11" port protocol="tcp" port="2375" accept"

5、删除规则

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firewall-cmd --permanent --remove-rich-rule="rule family="ipv4" source address="10.40.107.11" port protocol="tcp" port="2375" accept"

6、然后对指定的IP开放指定的端口段

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firewall-cmd --permanent --add-rich-rule="rule family="ipv4" source address="10.40.107.11" port protocol="tcp" port="30000-31000" accept"

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