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? 3. Install docker白果这才一一说了，公爷一早就出去了，是被人叫出去的。In TCP implementation, when receiving the SYN request from the client, the server needs to reply the SYN + ACK packet to the client, and the client also needs to send the confirmation packet to the server. Usually, the initial serial number of the server is calculated by the server according to certain rules or adopts random numbers. However, in SYN cookies, the initial serial number of the server is obtained by hash operation and encryption of the client IP address, client port, server IP address, server port and other security values, which is called cookie. When the server suffers from SYN attack and makes the backlog queue full, the server does not reject the new SYN request, but replies the cookie (SYN serial number of the reply packet) to the client. If it receives the ACK packet from the client, the server subtracts 1 from the ACK serial number of the client to obtain the cookie comparison value, and performs a hash operation on the above elements to see if it is equal to the cookie. If equal, complete the three-way handshake directly (Note: At this time, you don't need to check whether this connection belongs to the backlog queue).The following physical attacks are weapon-based physical attacks,一千年前，魔王的一部份觉醒了。它率领着魔族们向赤龙神的一个分身——水龙王挑战。魔王五个手下中的四个设下了结界，由它和魔龙王一起直接跟水龙王决斗。后来，魔王的计划宣告失败，魔龙王被封印。魔族的行动渐趋寂静……**********青山书院，松涛居会客室，周夫子拆开洪霖递来的书信，是荣郡王手书。以及修筑城池等诸多方面的才学，能得到你们的帮助，简直是我尹旭几辈子修来的福气。