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Usefulness of shooting: shooting is an effective means when hunting (hunting animals); After the arrow hits the oil jug, it can burn around it.苏角嘀咕的同时，忘记了一件事情，那就是近朱者赤近墨者黑，过不了多用，他会发现自己身上有许多东西和越王尹旭很有相似自处，久而久之，这便成了越国的一种特sè。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.Let's first analyze the above process. We can summarize as follows:那我拎着这头往海里去。什么？王二河顿时一惊。When Franklin was writing, he realized that his vocabulary was very small, so he began to write poems. Because writing poems is for rhyme and style of writing, uncommon words must be used, and these words will be deliberately used in the process of writing poems.