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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.周勃作为汉军之中的高级将领，身为一个名将到底有些见识，说道：汉王，唇亡齿寒，越国进攻的步伐太快，对梁国和齐国都是有威胁的。You will receive the following rewards:明川，鹏海市法医中心主任，性格古怪，专业超群，在当地法医领域是个绝对权威。当明川站在尸检台前，他就成了鹏海市远近闻名的“听尸者”。适时，光明市又发生一起干尸案，凶手似乎受过专业训练，反侦察能力极强，被称为“杀人医生”。光明市女刑警队长罗笔芯认为“杀人医生”是警察系统内部人员的可能性很大，并将目光锁定在临市的明川身上…罗笔芯决定彻查明川和“杀人医生”案的关联，并开始调查明川神秘的经历和背景，随着调查的深入，一个深埋多年的秘密终于重见天日……板栗嗤笑道：你做梦呢。该剧以当今商战风云变幻、龙蛇沉浮的大背景为依托，讲述了天美集团董事长蓝百万在面对亲人的背叛与暗杀，金钱与欲望，他如何绝地反击，自我救赎的故事。生动展现了他大起大落，悲欢离合的人生。