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This leads to an obvious potential DoS attack. Incoming SYN packets will be allocated too many TCB and the host's kernel memory will be exhausted. In order to avoid this memory depletion, the operating system usually associates a "backlog" queue parameter with the listening interface, which maintains both the upper TCB number of connections and the SYN-RECEIVED state. Although this scheme protects the host's available memory from attack, the backlog queue itself brings a (small) source of attack. When there is no space in the backlog, it is impossible to respond to new connection requests unless the TCB can be recycled or removed from the SYN-RECIEVE state.Abstract factory mode refers to providing an interface to create a series of related or interdependent objects, so that clients can create product objects in multiple product families without specifying the specific type of products, emphasizing the change of "series objects". The main points of its implementation include:…,在这一点上，三个人完伞是相同的看法。Rocket launcher (mine x 10)这是一部展示我国缉毒警察智勇双全，与贩毒犯罪分子展开殊死斗争的故事。/bow (bow)残酷的真相像刀子一样一次次割裂着李家瑜脆弱的心，最终将家瑜逼上了复仇之路，家瑜以“智慧和正义”为武器，向前夫和闺蜜展开了一场激烈的抗争……