DDOS attacks mainly occur in the network layer. Its most obvious characteristic is to send a large number of attack packets, consume network bandwidth resources and affect normal users' access. At present, the detection and defense technology for DDOS attacks in the network layer is quite mature, and at the same time, some new attack methods-DDOS attacks in the application layer have emerged. Different from network layer DDOS attacks, application layer DDOS attacks mostly imitate the access behavior of legitimate users and will not generate a large number of attack data packets during data transmission, but they will consume server resources through a large number of database queries and other operations, which is more difficult to detect. According to the different attack modes, DDOS attacks include reflection amplification attacks in addition to ordinary flooding attacks. This type of attack often uses a legitimate server as a reflector, which sends a large number of data packets to the target, thus causing greater harm. At present, DDOS attacks against DNS servers are also common. Attackers often send fake domain names to DNS servers, consuming DNS server resources. At the same time, due to the recursive query mechanism in DNS servers, DDOS attacks against DNS servers have a large impact range.
喂，他把下巴搭在季木霖的肩膀上，轻声地说，我们做吧……季木霖的脸色微变，抬手毫不犹豫地就推开了徐风。
秉持着“损友”原则厮混多年的青梅竹马卢嘉嘉（李婷婷饰）和年孟宇（刘芮麟饰）在高中毕业后一起去上海读医科大学。年孟宇凭借自己的经济头脑和家庭关系开始在校创业，财迷卢嘉嘉则为给异地初恋男友买手机变身年孟宇“御用会计”顺便兼职“拾荒”。之后卢嘉嘉认清感情决定分手，年孟宇却被学校的古典美女孙晓慧（肖雨饰）吸引。孙晓慧作为情场高手玩弄年孟宇于股掌，在卢嘉嘉的帮助下才认清真相。此时，卢嘉嘉的代课学长姜枫喜欢上卢嘉嘉，年孟宇也渐渐意识到自己对卢嘉嘉的感情。非典的意外到来让三人开启同居生活，姜枫向卢嘉嘉表白却被拒绝。年孟宇终于意识到和卢嘉嘉多年损友背后的爱情真相
Second, SYN attack principle
Wars in the Fifth Field
儿时漂亮的慧珍（迪丽热巴饰）曾经拥有完美一切，但长大后却变得平凡，成了无人关注的“龙套女”。年少时期的好友白皓宇（盛一伦饰）国外留学回到滨江市，想找慧珍见面。慧珍为不使皓宇失望，让好友夏乔（李溪芮饰）替自己见面。白皓宇并没有认出夏乔是假扮。慧珍到杂志社上班后发现上司是白皓宇，他已送走“矮挫胖”蜕变为时尚精英。“高冷”的白皓宇对工作严厉，慧珍也因此受到责难。记者林一木（张彬彬饰）表面捉弄慧珍，实则暗地帮助她。白皓宇在和夏乔的相处中，发现夏乔离记忆中的慧珍相差甚远。慧珍逐渐克服自己工作不足，慢慢成长。白皓宇发现公司里的慧珍更接近于记忆中的慧珍。白皓宇发现夏乔不是慧珍的真相后，回到真正的慧珍身旁。林一木此时也开始追求慧珍，并和白皓宇一起竞争。杂志社遭遇销售量下滑危机，林一木大局为重，主动让白皓宇采访自己，原来他是位非常有名的作家，为体验生活而来办公室上班。慧珍将自己工作经历画成漫画，发表到网上，引发点击率热潮。最终慧珍和皓宇终成眷属。
故事发生在一家国际时尚传媒集团的中国杂志总部。生于普通家庭的女主人公周恬刚从北京某大学文学系毕业。《HAN尚》是一本时尚杂志，由“时尚第一主编”韩露亲自操刀运营，周恬因机缘巧合成为主编韩露的初级秘书，在这之后伴随她而来的是以前未曾想象过的残酷职场经历。女主人公通过自己的勤奋和努力，很快完成了“麻雀变凤凰”的过程，经历了一场梦幻般的职场冒险。在这个化茧成蝶的过程中，周恬身上所体现出的执着、奋进和面对何种困难都不放弃的精神鼓舞和感染着每个人，在痛并快乐的奋斗过程中，周恬却发现自己一直努力不放弃的工作并不如想象中的那么美好，而她的爱情也因环境的改变面临着考验……
35. The company can regularly organize various social activities attended by all employees or supervisors or above. In particular, the sales and management department is at the grass-roots level and is busy all day. Without funds and time, there is no chance to communicate with employees. It is suggested that the company can use different forms (e.g. Fraternities, parties, suburban tours, etc.) to enhance the friendship and feelings between colleagues at appropriate opportunities. Create a harmonious working environment. To do a better job.
这是一个关于悲惨生活的女孩Paeng的故事。失去父亲后，她不得不住在Artit的家里。她能够留在这所房子里的唯一方法就是和他在一起。但是谁也没想到，她接近Artit差点要了他的命。他最终恨透了她，她被远离家乡四年直到他们再次相遇的那一天。有人可能会认为时间会减少仇恨，但对Artit却不会。他不仅仍然恨她，而且比以前更加恨她。但是为了兑现对Artit父亲的最终承诺，她必须忍受。
公安部获悉：一代码为”三D“的神秘女子携带毒品的配方及样品秘密的潜入了中国的沿海城市--海阳市，认为该市定有其组织在我国大陆设立的毒品生产基地，公安部命令海阳市公安局务必严查！
Liang's husband came home and found the victim lying in the kitchen and called the police for help.
彼得，他的新搭档凯蒂（Katy）和儿子约翰（John）从法国的第一个假期就回到了多尔金（Dorking）。 隐藏在他们汽车后备箱中的是叙利亚难民萨米。
Since the 1920s, the influx of Western journalists into China has been like crucian carp crossing the river, but as far as the social status at that time is concerned, no one can expect Aban to match it. Aban is naturally competitive and can't compete for emergencies in the front line, but his real advantage lies in his extensive upper-level relations. The top level of the Chinese government and the top level of Japan, the United States, Britain, the Soviet Union and other countries in China are full of his personal friends. At the beginning, the national government wanted to expel him from the country, but later, all four families took him as their guest of honor. Japan attaches more importance to the fact that the top leaders of various factions and departments in civil and military affairs are eager to break through his threshold. The Soviet Union was also interesting. While setting off a wave of criticism of Aban, it sent an ambassador to talk with him in secret and entrusted him with conveying high-level meanings. As for the United States and Britain, it goes without saying. The importance of Aban lies in the fact that his role has completely gone beyond that of a mere reporter. To the U.S. Government, he is an unpaid senior intelligence agent, providing top secret information free of charge, weighing more than any official spy. To the rest of the governments, he is a supernumerary U.S. Diplomat, and his role is often beyond the reach of U.S. Ambassadors. Therefore, between Japan and the United States, between China and the United States, and between the United States and the United States, he has to send messages frequently. As for the infighting among various countries, they should also reveal their secrets to him so that they can be published in the New York Times and confuse each other. For example, before Japan officially joined the Axis, because of the confrontation between the two factions at the highest level, some people secretly told each other the news, which made him get a global super scoop for no reason. All this, of course, depends on the golden signboard of the New York Times and its inexhaustible resources.
Summary:
越国的实力已经今非昔比，无比强大。
二小姐，现在怎么办？姜玘蹙眉想了想道：嬷嬷得想个法子。
Visitor pattern decouples the data structure from the operations acting on the structure, making the operation set relatively free to evolve. Visitor pattern is suitable for systems with relatively stable data structure and easy change of algorithm. Because visitor mode makes it easy to increase algorithm operation. If system data structure objects are easy to change and new data objects are often added, visitor mode is not suitable. The advantage of visitor mode is that it is easy to add operations, because adding operations means adding new visitors. Visitor mode centralizes the relevant behaviors into one visitor object, and its changes do not affect the system data structure. Its disadvantage is that it is difficult to add new data structures. -From Encyclopedia
The police searched for the suspects in the surveillance of various transportation hubs. Everything comes to him who waits. Through video surveillance, they found that the four suspects fled from Jining to Xintai on the bus. Finally, the police caught up with the long-distance bus in Anyang County, Tai'an City. On the afternoon of May 17, investigators arrested four suspects. They did not expect the police to find them so soon. All four criminals were arrested and the whole arrest process took only one or two minutes. At 4 pm, the four criminals were escorted back to Fei County. At this point, all the investigators' questions finally have answers.
在墨尔本饥饿鬼节前夕，一个强大的护身符被打破时，一个复仇的精神体被释放出来，把死者带到了他身边。 当他们在整个越南澳大利亚人社区造成严重破坏，挽回失去的爱情并偿还旧的怨恨时，一个从未对自己的身份承担任何责任的年轻女子最终必须站起来接受自己的命运。
故事发生在海滨旅游胜地永平市，它通过碧海旅行社总经理齐凤瑶、永平市最大的旅行社总经理苏江礼、宏海贸易公司总经理曾晖及导游员张婷婷等之间发生的一连串矛盾纠葛，揭示出在社会主义市场经济条件下，多行不义必自毙，惟有诚信待人处事走正道方有好报的道理。
