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The sockstreet attack first completes the tcp three-way handshake the tcp connection is established, but in the last ack reply of the three-way handshake, the attacker sets its tcp window to 0 and then makes a data request. When the target discovers that the TCP window size at the receiving end is 0 when transmitting data, it will stop transmitting data and issue a TCP window probe packet to ask the attacker if its TCP window has been updated. Since the attacker does not change the size of the tcp window, the target will always maintain the tcp connection waiting for data to be sent and continuously carry out window update detection. If the attacker uses a large number of controlled hosts to carry out sockstreet attacks, the target will always maintain a large number of tcp connections and carry out a large number of window update detection, and its tcp connection table will gradually run out.When I remembered that Cat's Eye movie started to make information, I wanted to make a live broadcast of the Oscar awards and push out the final winners in the first place. Oscar happened to be the fifth day of the first month in China that year. A small operating partner and I were working in our hometown. When we were brushing our circle of friends, we saw five or six friends of Time.com on duty in the company and ordered delicious takeout.Identity: Director [Xing Fu]由舰长凯瑟琳·珍妮薇（Kathryn Janeway）指挥的联邦星舰航海家号，在第一次任务中同前马奇队员汤姆·派瑞斯奉命寻找一艘马奇船（马奇组织，是由一些反对星际联邦和卡达西人签订条约的联邦殖民者组成），而同马奇船一同被一个叫守护者"Caretaker" 的实体由阿尔法象限带到了离家7万光年的δ象限，在这次横跨银河系的传送中，航海家号失去了他们的大副和医官。在δ象限，两艘星舰同时被希望得到守护者的先进科技的卡松人（Kazon）所攻击，为了共同返乡，马奇舰选择了同航海家号合作，而这时航海家号舰长珍妮薇却决定毁灭即将死去的守护者，以保护这个星域的势力平衡和一个叫欧康帕的种族的安全，于是马奇舰长查克泰牺牲自己的星舰毁灭了守护者，在关键时刻所有马奇队员都被传送上了航海家号。虽然卡松人就此撤退，可是航海家号上的人们却面临着即使使用最高曲速也需要75年才能返乡的境地，于是两艘星舰上的船员合二为一，共同为返乡努力。在航向α象限的过程中，航海家号上还拥有了两名新的成员，泰莱克斯族人尼利克斯以及欧康帕族人凯斯。航海家上的船员们共同经历了以摄取别的种族器官来维持自己生命的维仃人，和联邦面对过的最强大的敌人，博格人，还有生存与液态空间的种族8472。其中也有曾经是敌人的星联船员和前马奇队员的冲突与重归于好，甚至还有一位博格船员7/9的加入，这一切都让航海家号返乡的旅途即漫长，却又丰富多彩。再经过了7年漫长的航行后，航海家号终于通过博格人的超曲速信道顺利返乡，而航海家号也成为了博物馆，舰长凯瑟琳·珍妮薇晋升为上将。As a new salesman, don't rush out to find customers. First of all, it is also the most basic thing to have a comprehensive understanding of the attributes of the products to be promoted, and to have an understanding of any aspect and information about the products. At the same time, we should have a familiar process with the company's work flow and understand the company's sales and operation system. Only by mastering these can we well introduce the company's products to our customers, and only when we encounter relevant problems in the marketing process can we know how to solve them, so as not to be in a hurry and affect our customers' confidence in the company. Therefore, sharpening knives does not miss woodcutters, and when they are fully prepared to find customers, the results will definitely be different.