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通信技术与计算机技术的结合，出现了计算机网络，尤其是全球性计算机网使人们能远距迅速交换和共享信息，同时也造成人们对计算机网的依赖，需要它安全可靠地持续运行，和必要的对信息的控制和验证，计算机网络安全已经是各国政府和民众关心的重要问题，本文从计算机网络安全之才技术方面，叙述关于防电磁波泄露信息、判明用户身份、网间信息防火墙等十个当前主要的技术问题，与读者共同讨论。
The combination of communications technology and computer technology has led to the advent of computer networks, especially the global computer network, enabling people to quickly exchange and share information over long distances while also creating reliance on computer networks that require it to operate safely and reliably and, where necessary, Control and verification of information, computer network security is an important issue that governments and people of all countries are concerned about. This paper describes the technical aspects of computer network security, describes the information on the prevention of electromagnetic wave leakage, identify user identity, network information firewall ten The current major technical issues, discussed with the reader.