【摘要】 随着计算机网络的发展,网络安全风险变得更加严重和复杂,尤其是服务器的安全。笔者从网络防火墙方面,研究以TCP/IP协议为基础的数据包过滤算法,并通过嵌入式Linux开发,完成防火墙设备的开发。设备工作于外部网络与服务器之间,发挥保护服务器安全的作用。更多还原

【Abstract】 With the development of computer network,network security risks become more serious and complicated,especially in the server’s security.From the network firewall aspect,the article researchs the packet filtering algorithms based on the TCP/IP protocol,and embedded Linux development,completed the development of the firewall device.The device works between the external network and server,plays a role in protecting the server security.更多还原