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That morning, they agreed to gather in the square at the gate of the Bureau of Letters and Visits, but before the gathering was completed, someone appeared and asked to check their certificates and mobile phone information. Once they were confirmed to be defenders, they were taken to the bus.Reset authentication takes advantage of the reliability of TCP protocol, and DDOS protection system responds to syn first. When the protective device receives syn, it responds to syn_ack and sets the Acknowledge number to a specific value (recorded as a cookie). When the real client receives this message and finds that the acknowledgement number is incorrect, it will send a reset message with a sequence number of cookie + 1. The source of the forgery will not have any response. In this way, we can add the real client IP to the white list. ?We know that computers can be used for work, study, entertainment, etc. In addition to the necessary computer hardware, software is also needed. Usually, we call a computer with only hardware but no software "bare metal", which cannot do any meaningful work. At present, software can be divided into two categories according to its use: system software and application software. System software is a program designed for computer systems to efficiently use and manage computer software and hardware resources and support the operation of application software. Such as operating systems, programming languages and language processing programs, network system software, system service programs, etc. Among them, Windows operating system is what we often use. Application software is a variety of programs that are user-oriented and written to solve practical problems. It can be written by users themselves or purchased. For example, office XP, Photoshop, Red Alert and so on, which we often use.Minimum Configuration:　　Ricky Jerret的新发现影响了他的个人生活和职业前途。Vernon Littlefield和Reggie决定接受一种非常前卫的生意冒险。　　因一次意外邂逅了长得帅气又充满激情的毛杰，有了脱轨行为，而且怀了他的孩子这使她和铁军的婚姻破灭了。而在一次执行任务时，她发现毛杰竟是贩毒份子……