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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.该剧讲述的是Atiya爱上了他同性恋哥哥的乡下小姨子Mui，因为她不同于他遇过的任何一个人，她大胆、固执、充满活力，与城里女孩比不势利眼的故事。First click on the pink box of the subway ticket (see above), and then this interface will appear.Examples:It is so simple that there are some old but neat books in it, mostly children's books, which can be taken and placed at any time for children in need. There is an old Chinese saying: "Don't do it with small evil, don't do it with small good". You understand the truth, but you still need to pay attention to how to do it.　　由中国电视剧制做中心制做，导演潘欣欣；主要演员：张宝庆(孙少平); 任冶湘(田晓霞); 郑保国(孙少安); 金顺子(田润叶)。