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Note: If you use the-R option to modify actions in the rule, you must indicate the original matching conditions in the original rule, such as source IP, destination IP, etc.The main reason why DDOS attacks are difficult to defend is that there are too many vulnerabilities and attack methods that can be exploited. In the OSI seven-layer network model used in the network data transmission process, basically each layer has protocols that can be exploited by DDOS attacks. According to the different network levels of the protocols used for DDOS attacks, this paper summarizes the currently known DDOS attack types and their defense measures as shown in Table 1-3. For more detailed information on current DDOS attack and defense, please refer to Huawei DDOS attack and defense summary post.Attack beads are all delivered.秦源对门外寒声道：带郑昊。明朝皇帝崇祯为六女长平公主选驸马，左都尉之子周世显才华出众，长平公主对颇有文才的周世显一见钟情，互换信物，崇祯龙颜大悦，选周世显为当朝驸马，引起一心想成为驸马的袁宝伦的忌恨。举世欢腾的新婚之日，传来闯王李自成攻进京城的消息，京师震动，崇祯将长平公主赐死。身受剑伤的长平公主被袁宝伦之妹月兰小姐搭救，藏于袁府。袁宝伦发现长平公主藏于家中后将其关禁，在智慧师太的帮助下公主脱险，随师太居于百花山，为防不测避开追捕，智慧师太对外谎称长平公主已死，并立墓碑。驸马周世显逃难到关外，无意中被招入罗克勤亲王府为医，化名“周康”。周世显的口才和博学，深得罗克勤亲王和其女儿婉君格格的厚爱...Public void accept (Visitor visitor);