CentOS7关闭firewalld并启用iptables

在CentOS7中，防火墙iptables被firewalld取代。但为了使用习惯，还是喜欢把防火墙改回iptables。

[root@localhost ~]# systemctl stop firewalld  ##停止防火墙 firewalld
[root@localhost ~]# systemctl disable firewalld  ##禁用防火墙 firewalld
Removed symlink /etc/systemd/system/dbus-org.fedoraproject.FirewallD1.service.
Removed symlink /etc/systemd/system/basic.target.wants/firewalld.service.
[root@localhost ~]# systemctl status firewalld  ##查看防火墙状态

防火墙 firewalld 关闭成功

接下来就是启用iptables了，安装iptables相关组件

[root@localhost ~]# yum install -y iptables-services iptables-devel.x86_64 iptables.x86_64 

[root@localhost ~]# systemctl enable iptables  ##启用iptables

[root@localhost ~]# systemctl start iptables  ##启动iptables
[root@localhost ~]# systemctl status iptables  ##查看iptables状态

测试：

iptables启用成功。