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DDOS attacks mainly occur in the network layer. Its most obvious characteristic is to send a large number of attack packets, consume network bandwidth resources and affect normal users' access. At present, the detection and defense technology for DDOS attacks in the network layer is quite mature, and at the same time, some new attack methods-DDOS attacks in the application layer have emerged. Different from network layer DDOS attacks, application layer DDOS attacks mostly imitate the access behavior of legitimate users and will not generate a large number of attack data packets during data transmission, but they will consume server resources through a large number of database queries and other operations, which is more difficult to detect. According to the different attack modes, DDOS attacks include reflection amplification attacks in addition to ordinary flooding attacks. This type of attack often uses a legitimate server as a reflector, which sends a large number of data packets to the target, thus causing greater harm. At present, DDOS attacks against DNS servers are also common. Attackers often send fake domain names to DNS servers, consuming DNS server resources. At the same time, due to the recursive query mechanism in DNS servers, DDOS attacks against DNS servers have a large impact range.第一次“三界大战”中，妖帝为了达成统治“天、人、妖”的阴谋，企图夺走人界命脉大地灵髓。战争过半，人界武修死伤殆尽，钟云飞三兄弟殊死一搏。就在灵髓不保时，天界最高神玄穹帝尊舍弃仙体，用尽灵力将妖帝封印。此时，大地灵髓坠落人间，与钟云飞三兄弟魂魄结合，重生仙体，但因灵髓是阴阳之气结合，所以三弟含烟变成女儿身，闹出不少笑话。 大战结束后，妖族残余未从人界撤退。钟云飞自愿接下使命，下界除妖。 钟云飞同心合力，本想用剑扫尽人间不平事，却屡屡遇到难题，才发现是非曲直远非他们想象中的简单。在一次次挫折与试练中，三人的性格逐渐成熟，力量也逐渐强大。面对猖狂的妖界反扑，不惜自我牺牲来成全正义，成了人界永远的守护神。Condition 3: Critical Strike Changed to 90% 3879.1544