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As mentioned above, SYN attacks can be prevented by increasing the backlog queue. In addition, reducing timeout time also enables the system to process more SYN requests. We know that the timeout timeout, that is, the half-connection lifetime, is the sum of the timeout times that the system waits for all retransmissions. The larger this value, the longer the half-connection takes up the backlog queue and the fewer SYN requests the system can handle. In order to shorten the timeout time, it can be realized by shortening the retransmission timeout time (usually the first retransmission timeout time) and reducing the number of retransmissions.依稀看见张槐、张杨、赵耘、板栗等人迎上前来，问他什么话儿。The third adapter mode is the adapter mode of the interface, The adapter for the interface is as follows: Sometimes we write an interface with multiple abstract methods, When we write the implementation class for the interface, All methods of the interface must be implemented, This is obviously wasteful at times, Because not all methods are what we need, Sometimes only a few are needed, In order to solve this problem here, we have introduced the adapter mode of the interface. With the help of an abstract class, the abstract class implements the interface and all methods. However, we do not deal with the original interface, but only get in touch with the abstract class, so we write a class, inherit the abstract class and rewrite the methods we need. Take a look at the class diagram:Liu Xing, who plays the quaint Liu Xing in "Family with Children", is well known by the audience. The 2016 starring "Yu Zui" has made him popular in the entertainment circle. There is much room for appreciation, sign!本片讲述的是民国初年，出身于武术世家的马永贞，为了帮助闸北百姓重获家园，只身涉险，凭借自己的一身武艺和一颗炽热的爱国之心与五湖帮和法国武者一决高下，赢得擂台赛，捍卫民族尊严，弘扬民族精神的故事。在清南村，平日里也只跟郑家和张家走得亲近些。与挚友的竞争，来自所爱女性的告发在失去很多的同时，男人最后得到的东西是…！？