In TCP protocol, messages arriving at the destination will enter the buffer of the TCP stack and will not be forwarded to the receiving system until the buffer is full. This is to minimize the number of times the system empties the buffer. However, the sender can force the receiving system to clear the contents of the buffer by sending a TCP message with a PSH flag of 1. The TCP PUSH + ACK attack, like the TCP SYN attack, aims to deplete the resources of the victim system. When an attacker sends TCP messages with PSH and ACK flags set to 1 to the Target host, these messages will cause the Target system to clear all TCP buffers (whether the buffers are full or not) and respond with an acknowledgement message. If this process is performed by a large number of controlled hosts, the system will not be able to process normal data, resulting in denial of service.本故事就是始于江南翠竹镇上，镇上有户孟家其女孟丽君聪明绝顶，喜作男装打扮瞒其父孟士元在外求学，结交朋友。机缘巧合下男装的君结识微服下江南的王孙铁穆耳及忠直少年皇甫少华，三人从此结下不解缘。而君早被某人笛声打动，误以为吹笛人是铁，由此芳心暗许。天意弄人，君父却将君许配世交皇甫敬之子皇甫少华(因华之前化了名，君未知二者同为一人)。The students. They may have been able to enter the threshold of university with the help of the state and society, but they do not have the money to buy computers, participate in more education and training, etc., and Qifang Network provides this loan method with negotiable interest, which broadens the channels for loans. Qi Fang's risk control has the following three characteristics: decentralized loans, strict examination and risk sharing. Decentralized loans are the common characteristics of these models. Strict examination means that students need to pass five related certifications before releasing help-seeking information: website ID card authentication, mobile phone authentication, bank account authentication, e-mail authentication and student ID card authentication. After passing five certifications, the student's identity can be determined. Risk sharing is mainly due to the fact that Qi Fang's borrowing targets come from universities that cooperate with Qi Fang, such as Chengdu College of Sichuan University and Ningxia Normal University. Schools and Qi Fang share risks. In this way, we can not only better find the right loan recipients and provide the real and effective evaluation of the loan recipients, but also make it easy for students to find loans through Qi Fang, and also avoid the risks of lenders. When the loan is established, the money will not be directly transferred to the student's bank account, but will be transferred to the account of the school where the student is located, and then the school will send the money to the borrowing student, thus ensuring the real use of the loan. Qi Fang's profits come from three sources: first, the service fee, which is about 2%. The second is online advertising revenue. The third is the commission of training tuition income. This is a more distinctive point. Through cooperation with training institutions or enterprises, Qi Fang not only provides assistance to college students who cannot afford training expenses or enterprise training, but also shares it from the tuition income of training institutions. Qi FangThe instructions are safety instructions and operation instructions. They are printed in black and white in English and have no recipes. It would be better if Chinese instructions and recipes could be attached.2006年初秋，滨州市、香港乔氏地产公司驻滨州市项目代表郑天京被人在住所谋杀，他的尸体当晚被埋进了工地垃圾堆中……安局长陆啸天命刑警支队重案组长刘英来率重案组成员姚晃、依蔓和飞飞赶到案发现场投入侦查工作。重案组严格对死者死亡时间保密，发现死者与龙心集团董事长张伟及其部属有密切联系。张伟出身黑社会团伙，掌控滨州市黑白两道……同时，被刘英杰逮捕的杀手大脚从服刑地新疆脱逃，潜回滨州市，被老大张伟窝藏起来。大脚仇视刘英杰，打算干掉刘英杰……重案组民警李晓和派出所民警联手捉拿大脚，大脚老奸巨滑溜掉。张伟得知大脚出外生事，将他训斥一顿，命他在密室上网，不准外出。 这日，CID峰（谢霆锋 饰）和女友Miss张（张柏芝 饰）正因张母反对二人在一起而苦恼，老夫子和大番薯因得罪黑社会老大金爷被追杀，引发了一场大车祸。车祸中峰和Miss张失去了记忆，痊愈后两人形同陌路。
