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Attack features include:该剧讲述资产达600亿韩元的知名画家死后，人们围绕着他的死，揭发秘密的故事。If an attacker sends a large number of SYN requests with fake source addresses, the server side will consume a lot of resources to handle this semi-connection, and saving traversal will consume a lot of CPU time and memory, not to mention retrying SYN + ACK on IP in this list. TCP is a reliable protocol, and messages will be retransmitted at this time. The default number of retries is 5. The interval time of retries is doubled from 1s to 1s + 2s + 4s + 8s + 16s = 31s respectively. After the fifth time is sent out, it will take 32s to know that the fifth time has timed out, so the total is 31 + 32=63s.而且还暗自利用尹旭和宋义，互相制衡。除夕之夜，灾难突如其来地发生了，雪崩骤至……400多人惨死冰天雪地的金刚山里，事件迅速惊动了省和中央，白玛市金刚山现场指挥部紧急成立，直升机，救护车，公安武警部队，记者等开向现场…… 雪堆中，方华生家和丹巴家这两个白玛市最大的家族儿女，公安局派进华生黄金公司的卧底，华生黄金公司的会计，暗中追查华生黄金公司内幕的北京记者等不幸遇难……Now that a strong state machine has been written, the logic of this state machine is simple and meticulous. It seems that this code is designed impeccably and this program has no bugs. In fact, this kind of code has been written countless times. For example, to switch the class of a button alternately, like this example, a variable state is often used to record the current state of the button first, and when an event occurs, the next behavior is determined according to this state.张无忌走出武当大殿，看着翩然而去的赵敏。