Note: 1 = Excellent 2 = Good 3 = Satisfied
The principle is that syn messages are first responded to syn_ack by DDOS protection system. With a specific sequence number (recorded as a cookie). The real client returns an ack and the Acknowledge number is cookie+1. The fake client will not respond. In this way, we can know that the clients corresponding to those IP are real and add the real client IP to the white list. The next access passes directly, while other forged syn messages are intercepted. The following is a schematic diagram of protection:?
2. High requirements for technical research and development;
赵光头越听越气，指着徐文长骂道：没有必胜的把握，我们还来南洋作甚？。
巴斯光年的故事和他到无限远的冒险。
故事的主人公朱小强是一个打不死的小强。曾经是一名优秀军人的他，执行任务受伤失忆后，回到了普通人的生活。但是他依然努力的工作，尽责的照顾家人，勇敢的面对自己。他为国家和家人付出一切无怨无悔，国家和亲人们也给予了他从物质到精神的无限关爱。最终他找回了自己的一切，又义无反顾的站在了对敌斗争的第一线。主人公作为和平年代中的退伍军人形象，体现了充满自我牺牲精神的援助人道主义精神，呈现了我国军警人员奋不顾身守护国民生命安全的决心，表达了主旋律、正义、铁血柔情等的主题。
Retroarch is the core of all emulators. No matter which emulator is running, it needs to be called and must be installed first.
亚马逊2021超自然新剧《猎魔故事集》讲述六个陌生人被神秘人困于纽约地铁，神秘人自称猎魔人，魔鬼藏在这六人之中。神秘人分别潜入六人灵魂，誓要找出并除掉魔鬼。
该剧改编自鬼马精灵作家准拟佳期原创IP，讲述了万众瞩目但文学素养欠佳的演员由曦与患有人群恐惧症的历史系学霸尉迟杳杳因为一场阴差阳错的碰撞邂逅，完成从互怼、互助到互爱的神迹进化论的爱情故事。
黑云压顶、山雨欲来，一场惊心动魄的厮杀就在眼 欢喜姻缘前：名捕（张国立饰）一路猛追，终于将威震八方的“江洋大盗”（陈亚兰饰）逼到了绝境，随着隆隆的雷声和铿锵的鼓点两人兵刃相见。刹时，只见风卷残云，日月变色，天昏地暗，一剑挑飞了“江洋大盗”的面纱盖头，定睛一看，大惊失色，此“江洋大盗”不是别人，正是自己的未婚妻！目瞪口呆之际，脚下一滑，名捕直向万丈深渊栽下去……幸亏名捕的未婚妻眼疾手快，一把将其抓住！眼见未婚妻身后石块松动，摇摇欲坠，名捕要陈亚兰快快松手，然后痴情女子哪肯舍弃心爱之人，于是乎，一阵轰响，二人同时坠入深谷。两朵样云扶摇升起，天籁之声，余音袅袅…
香港最大黑社会帮会“和联胜”举行两年一度的办事人选举，阿乐（任达华 饰）与大D（梁家辉 饰）作为两大地区领导，暗地里展开争夺宝座的努力，一众有投票权的元老亦为自身利益而明争暗斗，选举因此相当不顺利。 结果，阿乐再次获选成为办事人，满心不服的大D决定挑战帮规，他要抢夺到象征最高权力的信物龙头棍，组织新帮会。五名小头目（古天乐、张兆辉、张家辉、林雪、林家栋 饰）牵连其中，为争夺龙头棍展开连番内斗。最终鹿死谁手，一切不得而知。
故事发生在美丽的西南边陲。由罪恶、阴谋、美色、金钱和暴力编织的黑色网络一次又一次被年轻的边防缉毒战士撕毁。即使是曙光初照的黎明，为人类健康和尊严而战的硝烟仍远未散尽。高松是南疆边防支队调研参谋，朱镇疆是边防支队副支队长。在一次临时决定的紧急抓捕行动中，由于准备不充分，使境内头号毒枭马远从暗道逃脱，而且有两名战友在战斗中牺牲。高松因此受到上级调查局的怀疑，心理压力很大。情同兄长的朱镇疆毅然为高松承担了全部责任。朱镇疆平静地脱下军装，转业到了地方的计生委。壮志未酬的朱镇疆感到分外失落，但他极力掩盖着，俨然以一位永不服输的硬汉姿态配合总队继续他一生为之奋斗的缉毒事业。高松和吕跃既是战友又是情敌。两个男人如何面对情场战场的两难选择？
《来自未来的史密特》讲述了一个跨越时空的故事。2045年，警方发现了一个记有一份杀人记录的U盘，根据线索抓住了嫌疑人——软件工程师史密特。 史密特含冤入狱半年后, 因为罪証不足被释放, 之后, 他发现了一块可穿越时空的怀表, 他凭藉著其他线索, 怀疑真.
Due to the characteristics of weightlifting:
《十八罗汉》是李小龙执导的三十三集电视连续剧，由焦恩俊、何润东等领衔主演，讲述了唐朝末年，皇室势微，九皇子李如璧被迫逃亡，在西天十八罗汉的神助下荡平藩镇割据势力、夺回皇权的故事。
This chapter is the last lecture on design patterns. It will talk about the third design pattern-behavioral pattern, with a total of 11 types: policy pattern, template method pattern, observer pattern, iterative sub-pattern, responsibility chain pattern, command pattern, memo pattern, state pattern, visitor pattern, intermediary pattern and interpreter pattern. I have been writing about design patterns for a long time. At last it's halfway through, Writing a blog post is a very time-consuming thing, Because I have to be responsible for the readers, Whether it's graphs, codes, or representations, Everyone hopes to write it as clearly as possible so that readers can understand it. I think both I and the readers hope to see high-quality blog posts come out. Starting from myself, I will stick to it and update it continuously. The continuous motivation comes from the continuous support of readers and friends. I will do my best to write every article well! I hope everyone can give opinions and suggestions continuously and jointly create a perfect blog post!
5. Check the calculation, select another front row of defense data, and continue to learn from each other to verify the correctness of the formula.
赵国的前途也将会是无可限量，项羽刘邦，谁也不惧。
葫芦饶有兴趣地问道：为啥是白虎将军哩？板栗笑道：四灵物里边，白虎寓意战神，主杀伐，又属西方，这次的战争起于西北。
Go and see, won't be disappointed!
