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0引言目前来说,互联网普遍存在网络安全隐患的问题。互联网信息的来源渠道较广,因此在实现信息共享的同时也会带来网络安全问题。而互联网网络结构体系开放的特性已经决定了网络安全问题的存在,计算机的TCP/IP框架结构几乎不设置安全防范措施。互联网网络存在特洛伊木马病毒攻击、计算机端口扫描类攻击等安全问题,主要在计算机网络漏洞以及网络应用薄弱的部位进行攻击,并对计算机网络中的重要信息进行窃取,从而控制整
0 Introduction Currently, the Internet is generally a problem of network security risks. Internet sources come from a wide range of sources, so network security problems will also occur when sharing information. However, the open nature of the structure of the Internet network system has determined the existence of network security problems. There is almost no security precaution set in the TCP / IP framework of a computer. Internet network Trojan virus attacks, computer port scanning attacks and other security issues, mainly in the computer network vulnerabilities and weaknesses in network applications to attack and steal important information in the computer network to control the whole