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"If only my father and mother were here, they would be very surprised to see it!"道格拉斯·佩特瑞(《捍卫者联盟》)将执导Netflix巴西原创超自然惊悚剧集《Spectros》，故事发生在圣保罗的利贝尔达迪，将围绕五名青少年展开，他们无意中卷入了一个他们无法理解的，又与1908年该镇的同一地区联系在一起的不可思议的现实中。面对越来越离奇和严峻的事件，他们将得出一个深不可测的结论：有人带回了死者，而那些灵魂想要为过去的错误报仇。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.DDoS (Distributed Denial of Service) is a kind of attack that is difficult to prevent in DoS family. The attacker first controls a large number of broilers and then sends a large number of requests to the target server, resulting in the target server being unavailable. Here we cannot help asking how the attacker obtained a large number of broilers. Attackers will implant some malicious codes into some APP or websites. For example, when users use this APP or website, they will automatically request this website. If there are many active users of this APP or website, then this website will receive many inexplicable requests. This requires us not to browse some unknown websites and download APP from unknown sources in the process of surfing the Internet at ordinary times.后记中，项少龙携家眷，随乌家到塞外居住避世。Beijing女宿舍夜谈，舍友感慨工学院两两成基的现况，沈熹有点好奇此类话题苦于无法证实，直到她变成工科男，面前掉下一块肥皂。