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The attacker first completes the three-way handshake to establish the connection, but in the last ACK reply of the three-way handshake, the TCP window size is set to 0, and then a data request is made. When the attack target sends the request result to the attacker, it stops the data transmission when it finds that the TCP window size is 0, and sends out a TCP window detection packet to ask the attacker if the TCP window has been updated. Since the attacker will not update the window size, the attack target will always maintain the TCP connection and wait for the data to be sent, and continuously carry out TCP window size detection. When the number of controlled hosts in the botnet is large, Target's connection table will gradually be exhausted, resulting in denial of service.I have been paying attention to Zhang Dama for a period of time. At first, I wanted to see what discounts and seconds were available. Later, I gradually got a little into the pit. Before shopping, I had to look at Zhang Dama to see where there were discounts and where the discounts were low, especially those that hit fractures, cabbage and cabbage groups. Later, I gradually began to get involved in its crowd tests, list drying and other items.Alter database example set multi_userJust like Gu Xixi's speculation, someone really whispered on Jia Min's ear. Jia Min wrinkled up...According to Article 4 of the Provisions on the Composition of Total Wages:London Taxi Driver's Brain//049回去后，沈炎翻开杂志，看向期待已久的《神雕侠侣》。