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网络系统较为复杂,服务功能广泛、信息高度共享,且网络攻击手段在逐步演变的过程中不断增强了反查杀、攻击能力,破坏攻击、欺骗攻击、木马攻击、过载攻击、溢出攻击等频繁发生,用户之间、用户与主机、网络结构各个节点均可能发生安全问题,网络高效运行、快速反应能力受到影响,容易引起数据破坏、密码盗用、数据窃取及防护功能瘫痪、系统失灵。为避免网络信息被泄露及恶意损坏,应运用网络安全技术科学防护网络信息。本文分析了计算机网络信息的安全技术,旨在从信息技术层面减少网络内部与外部安全隐患。
Network system is more complicated, service function is extensive, information is highly shared, and anti-check and kill, attack ability, destructive attack, cheating attack, Trojan attack, overload attack and overflow attack frequently occur in the process of gradual evolution of cyber attack means , Security problems may occur between users, users, hosts and nodes of each network structure. The efficient operation of the network and rapid response capability are affected, and data destruction, password fraud, data theft and protection functions are paralyzed and the system fails. In order to prevent the network information from being leaked and maliciously damaged, the network security technology should be applied to protect the network information scientifically. This paper analyzes the security of computer network information technology, aimed at reducing the information technology-based network security risks within and outside the network.