| firewalld防火墙 | | | --- | --- | | service firewalld status [systemctl status firewalld] [firewall-cmd --version] | 查看防火墙状态 | | systemctl start firewalld.service | 开启 | | systemctl stop firewalld.service | 关闭 | | systemctl restart firewalld.service | 重启 | | firewall-cmd --help | 查看帮助 | | firewall-cmd --get-active-zones | 查看区域信息 | | systemctl disable firewalld.service | 禁止防火墙开机自启 | | systemctl enable firewalld | 设置防火墙开机启动 | | yum remove firewalld | 卸载firewall | | firewall-cmd --permanent --zone=public --add-port=3306/tcp | 把3306端口加入到防火墙，\--zone #作用域 ，\--add-port=80/tcp #添加端口，格式为：端口/通讯协议，\--permanent #永久生效，成功返回success | | firewall-cmd --version | 查看防火墙的版本 | | iptables防火墙 | | --- | --- | 安装iptables防火墙 yum install iptables-services 1、编辑防火墙配置文件，开放3306端口 vim /etc/sysconfig/iptables 2、添加配置：-A INPUT -p tcp -m state --state NEW -m tcp --dport 3306 -j ACCEPT 3、最后重启防火墙使配置生效 systemctl restart iptables.service 设置防火墙开机启动 systemctl enable iptables.service