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If the connection initiator is legal, the firewall/proxy will receive the ACK, then establish a connection between itself and the server and disguise the address of the connection initiator. The firewall/proxy separates the two sides of the connection. This segmentation can resist SYN flooding attacks because the server has not accepted SYN from the attacker at all. As long as the firewall/agent implements some TCP-based defense policies, such as SYN? Cookies or SYN? Cache, he can protect all servers behind him from SYN flooding attacks.Hulu的恐怖诗选剧《怪兽乐园 Monsterland》改编自Nathan Ballingrud短篇集《North American Lake Monsters: Stories》，剧集角色包括一些奇幻生物，例如堕落天使﹑狼人等，他们为求扭转自己的生活而绝望地采取一些行为，从而表达出人类与「他们」的差异其实并不大。Amy Hargreaves饰演常规角色，男主Clay的母亲Jensen女士，她性格爽朗﹑与儿子关系密切﹑富同情心及关心儿子，不过在Clay口中则称她是「直升机家长」（形容这些家长会像直升机一样，盘旋在子女四周，随时空降帮子女解决问题）。不过这位身为公正的律师，对待儿子时的确少了一份客观。爱情来了第一部的主演Pak和Mild再次合体之作。 　　The Best Twins《双子偷心》这部剧是讲述一对双胞胎兄弟的故事。 　　Pond和Per是一对双胞胎兄弟，Per是弟弟喜欢女孩子，是个直男，Pond是喜欢男孩子的，Pond的男友是隔壁的邻居Bon老师。这对双胞胎的姐姐Pad反对Per和男生交往，不接受弟弟的性向，这让他们的家庭关系受到震动。 　　不仅如此，当Pond的前男友Tee回来时，让事情变得更复杂。Pond在现任男友，前男友和姐姐之间的关系让他感到崩溃。 　　在剧集中，哥哥Pond是大学教授，弟弟Per是电影编辑，虽然他们的姐姐Pad很反对弟弟是个gay，但是Pad内心是十分疼爱两个弟弟，Pad的职业是高中老师。 　　Mild扮演的Tee是Per的前男友，是一名大学生，究竟这对双胞胎兄弟将如何处理生活和情感上的这几层关系呢？一切答案让我们期待3月30号开播的泰国剧集《双子偷心》吧！ 　　泰剧爱情效应由天府泰剧独家译制。据传Sara将会回归出演5集，Sara都回来了，Grissom还会远吗？Subway station is the center of the whole subway network. It not only undertakes the functions of personnel gathering and evacuation, but also undertakes the functions of various professional equipment and the operation of the whole system. The design of subway station is very important. The design of a station includes many specialties. In the traditional design, ISCS, BUS, FAS, PA, PIS and other professional engineers are difficult to achieve unity. BIM technology provides a collaborative design platform, which can promote effective communication among various specialties and integrate all resources. The application of BIM makes design communication more convenient, easy to adjust and improve, thus optimizing the design.OCP (Open-Closed Principle) principle emphasizes that a software entity (class, function, module, etc.) should be open to extension and closed to modification. That is, every time there is a change, the behavior of the existing type should be enhanced by adding new code instead of modifying the original code.