With RHEL 7 / CentOS 7, firewalld was introduced to manage iptables. IMHO, firewalld is more suited for workstations than for server environments.
It is possible to go back to a more classic iptables setup. First, stop and mask the firewalld service:
systemctl stop firewalld
systemctl mask firewalld
Then, install the iptables-services package:
yum install iptables-services
Enable the service at boot-time:
systemctl enable iptables
Disable the service:
systemctl disable iptables.service
Managing the service
systemctl [stop|start|restart] iptables
Saving your firewall rules can be done as follows:
service iptables save
or
/usr/libexec/iptables/iptables.init save
本文介绍如何在RHEL7/CentOS7系统中将firewalld服务停用并替换为传统的iptables服务。通过一系列命令操作实现服务的切换,并提供了保存防火墙规则的方法。
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