This is where the netfilter/iptables system can help.
这就是netfilter/iptables系统的用武之处。
To learn more about iptables, visit the project homepage.
要更多地了解iptables，可以访问项目主页。
Check that the service is running and the rules are in effect: service iptables status.
检查此服务是否在运行及这些规则是否有效：serviceiptablesstatus。
Check that the service is running and the rules are in effect: service iptables status.
检查此服务是否在运行及这些规则是否有效：serviceiptablesstatus。
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