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The real limiting factor for a single attacker who uses spoofing attacks is that if these spoofed packets can be traced back to their real addresses in some way, the attacker will be simply defeated. Although the backtracking process requires some time and cooperation between ISPs, it is not impossible. However, it will be more difficult to prevent distributed SYN flooding attacks launched by attackers using the advantage of the number of hosts in the network. As shown in FIG. 3, these host groups can use direct attacks or further let each host use spoofing attacks.Some of them went to the scene to defend their rights and found the boss to negotiate many times, but the talks failed and they called the police.1. First, we edited the map in MindManager Mind Map Software, then we clicked the "File" option in the upper left corner of the interface, and then we clicked "Save As" in the options on the left side of the interface, as shown in the following figure.经过一路跋山涉水之后，总算是走出了夜郎境内起伏的山地，即将进入巴蜀盆地。可不管咋闹。二黑也是一条狗，其地位跟大黄不可相提并论，只能在地上捡小娃儿们扔的骨头啃。