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利用Linux系统提供的Hook机制和LKM机制,将第三方防火墙,包含包过滤功能和NAT功能,无缝连接到Linux内核的TCP/IP协议栈上,并且具有较强的可伸缩性。
Linux system provides the Hook mechanism and LKM mechanism, the third-party firewall, including packet filtering and NAT functions seamlessly connected to the Linux kernel TCP / IP protocol stack, and has a strong scalability.