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Facing TCP's three-way handshake protocol, how should attackers launch attacks? The attacker first intentionally initiated a handshake packet. After receiving it, the server puts it into the waiting queue and returns an acknowledgement. Secondly, the attacker will no longer send the third acknowledgement packet, thus the server will make multiple retransmissions (the Linux system configures the number of retransmissions through tcp_synack_retries), consuming a lot of extra overhead, and the waiting queue will be occupied, even the waiting queue will be full, eventually causing the server to be unable to receive the client's request. This is the attack.For more information [4]永平帝欣慰地点头道：爱卿能体会朕的一片苦心就好。　　这天，拾荒人照常在垃圾箱寻找可以变卖的废品，不料发现了一个装着年轻女性尸体的行李箱。高婕失忆后离开大勇返回了加拿大。与爱人天隔一方的大勇思念高婕心切，准备飞往加拿大。正当他准备前往加拿大时，意外得知高婕回港了。原来高婕这次回来是要前往北京去做访问，死心不惜的大勇为了唤醒爱人的记忆跟着她一起来到了北京。高婕在机上遇一个叫罗道风的人，他说认识她，令到高婕以为是他失忆前的朋友，两人于是聊了起来。殊不知一起离奇的命案就起源这一次无心的聊天！大勇这次上北京本来准备挽回高婕的爱情，岂料在北京他们却意外卷入了一起离奇的真假高婕杀人案。辛亥革命前后，农民杨大可一家居住在广东香山县广兴围里。长子杨六斤与大地主容举人的丫头阿香完婚，又值丰收之年，杨家呈现出一派兴旺之象。二子九斤与私塾老师孙学斋之女洁贞相爱，无奈斋嫌其身份低微，将贞许配给容寡妇之子容昌，但不久昌即为革命党人处决……广东大旱，村民为抢水源与邻村发生械斗。因赈款被扣，九斤率众抢夺容家存粮，官兵赶来，九斤不敌，只好逃往澳门。后天降豪雨，泛滥成灾，杨家跟随逃往澳门，临行前将女儿阿满卖至容家为婢……澳门难民遍地，杨家无力维生，九斤为救全家，告别妻子洁贞，毅然卖身远赴美国充当劳工……4. Finally, HR talks with you about salary and can get notice and offer within a few working days (of course, there must be no notice for those who do not meet the requirements); And whether they need to know the company's situation and other information;