0引言现阶段,我国信息网络越来越庞大,涵盖的用户范围也越来越广,不仅如此,网络所覆盖的节点也越来越广泛,如果网络上的一个节点发生了问题,那么就会对网络的安全产生极大的危害,正因如此,随着网络开放性和包容性范围的不断扩大,与之相对应的技术安全也正在变得越来越重要。网络自身具有传递性和连通性的特点,因此它要面对的威胁就要远远的高于自身的威胁,正因如此,我们应当开动脑筋,寻求一系列的防护措施,将 0 Introduction At present, China’s information network is more and more large, covering a wide range of users, not only that, the network also covers more and more nodes, if a node on the network has a problem, then Which has great harm to the security of the network. As a result, as the openness and inclusiveness of the network expand, the corresponding technical security is also becoming more and more important. The network itself has the characteristics of transitivity and connectivity, so the threat it faces is much higher than its own threat. For this reason, we should try to find a series of protective measures that will