SYN attack is a kind of DOS attack. It takes advantage of TCP protocol defects and consumes CPU and memory resources by sending a large number of semi-connection requests. SYN attacks can not only affect hosts, but also harm network systems such as routers and firewalls. In fact, SYN attacks can be implemented as long as these systems turn on TCP services no matter what systems are targeted. As can be seen from the above figure, the server receives the connection request (syn=j), adds this information to the unconnected queue, and sends the request packet to the client (syn=k, ack=j+1), then enters the SYN_RECV state. When the server does not receive an acknowledgement packet from the client, it retransmits the request packet and does not delete this entry from the non-connection queue until the timeout. With IP spoofing, SYN attacks can achieve good results, Typically, clients forge a large number of non-existent IP addresses in a short period of time, SYN packets are continuously sent to the server, and the server replies to the confirmation packets and waits for the confirmation of the customer. Since the source address does not exist, the server needs to continuously resend until it timeout. These forged SYN packets will occupy the unconnected queue for a long time, normal SYN requests will be discarded, the target system will run slowly, and in serious cases, the network will be blocked or even the system will be paralyzed.
The process of fabric combustion is that the material absorbs heat and decomposes to form combustible materials (usually gases), and then ignites and burns. The heat released during combustion promotes thermal decomposition and ignition. As shown in FIG. 2, the following three conditions must be met for fabric combustion:
故事讲述一位被名作照明所俘虏的女性的故事。名作照明是主要在欧洲发展起来的灯具，超越室内装饰达到了艺术品领域的照明器具。讲述主人公・幸本遥（黑岛结菜）在宫城长大，是渔民的女儿。在东日本大地震中，失去了家和很多朋友。爱开玩笑、总是笑着的母亲的笑容消失了。 “我们为什么幸存下来呢?”。在临时住宅苦闷地生活了1年后，遥被地震后第一次捕鱼回来的父亲的渔船在漆黑海水中点燃的渔火所拯救。不久后来到东京的遥，在汇集了名作照明的专卖店中被“某一束光”所吸引，开始在店里工作。谢绝那些“照明之类的什么都好的客人”。取而代之的是，他感到自己的使命是服务那些从心底寻求光明的人，以减轻痛苦，并通过照明来丰富他的生活。每天都有一群个性丰富的人来光顾。遥将照明的魅力传达给人们，在寻找适合这些人的照明的过程中，人们的人生不断被“光”所照亮。而她自己也通过无数的相遇，克服心灵的创伤，找到了希望的光芒。
1989.07-魔女宅急便
On the other hand, other answers may be more sufficient than Zhang Yi's, but most of them are not clear enough because there is no clear classification and logic.
Symantec Protection Engine 7. X for Windows (64-bit)
除夕之夜，某市嘉年华晚会热闹非凡。陶李和孟梦两个网络少年偶然破解了密码程序进入卫星授时系统，使零点迎新焰火莫名其妙提前了三分钟！随之造成电网配电系统波动、大面积停电，供燃中心的毒气泄漏也在危及着居民安全，民航导航系统混乱，旅客随时都有生命危险，网络少年又神秘失踪，核电站传来预警险情……就在这紧急关头，核电站机密文件失窃，引起丁院士心脏病发！他忽然想起，只有前女婿孟少杰接触过自己的电脑，出于强烈的责任感，他将怀疑向国家突发事件应急中心负责人王常泰紧急作了报告。EMC网络组长夏末受命监视男友孟少杰，其内心极感矛盾，更使孟少杰痛苦万分，压力空前却有口难辩。偏巧这时，女儿孟梦失踪，前妻丁琳又突然回国，顿使已经分身乏术的孟少杰陷入内外交困境地……
告诉龙且，加快速度，现在英布是孤立无援。
某卫生局副处长耿林（王志文 饰）和医生刘云（江珊 饰）是一对结婚数载的夫妻，刚刚走出大学校门的娄嘉仪（徐静蕾 饰）和肖天海（王学兵 饰）则是一对即将分手的恋人。 当耿林和娄嘉仪相识之后，他们的情感世界在平静的生活背后发生了 剧烈的变化。即将步入中年的耿林和刘云，在事业的成功与物欲的诱惑面前，既羡慕又迷茫；在年轻一代执着而疯狂的爱恋面前，既羡慕又恐慌。他们试图在对方身上寻找真爱，结果却是由爱而恨，家庭也走向危机。然而，当耿林与刘云无意中被卷入一桩命案之后，二人重新发现了对方的美好与善良，他们义无反顾地投入到解救对方的行动中。而年轻的娄嘉仪与肖天海在经历了近乎疯狂的感情波折之后，也找到了各自的归宿。
精通科技的10岁男孩Ryder在拯救了6条小狗之后，将他们训练成了一组本领高强的狗狗巡逻队。每个小狗都性格鲜明，也各有特长。不管遇到多么困难和危险的救援任务，他们还总是忘不了相互玩闹，制作轻松的气氛，而每次幽默乐观的狗狗能总能顺利完成任务。
《深夜食堂》讲述了发生在一个小餐馆的故事，这里的菜单只有猪肉酱汤套餐一种，但是老板可以根据客人的要求利用现有食材做出各种料理，而且他还会和客人一起带出一个个充满人情味的故事。来小餐馆的有各式各样的客人，有黑社会份子，有没名气的演员，还有上班族和OL三人组。
前世人人都知道她是南城恶女，却不知道其实只是莽撞无脑的女配，在被设计陷害、名誉尽毁、暴毙街头后，她重生而来——这一世，绝不会让那群真正的恶人好过！
嬴诗曼话音落地，嬴子夜就厉声反问。
电视剧《绿豆花》原名《牛禁坡》，讲述了1894年东学农民运动的历史中，同父异母兄弟分别成为农民军和围剿队而斗争的故事。
这是一部探索在这个纷繁的世界里日趋侵害人们健康的心理疾病的视觉作品。编导攫取了一个女患者鲜为人知的生活经历，因而更具有观赏、娱乐、有趣、刺激、新奇的网络性。
The relationship between behavioral patterns:
Senior Investment Manager of Bertelsmann Asia Fund (BAI) Congjia said that he attached great importance to the comprehensive strength of the team. "In recent years, offline children's mathematical thinking institutions have developed very fast, especially some institutions have achieved a relatively high growth rate without expanding schools, which shows that parents' awareness of children's mathematical thinking in the original region is gradually improving and the market demand will be great in the future. For educational institutions, the premise to realize sound operation is that all links from teaching and research, teacher training to operation and management need to be relatively mature and perfect. "
Greece: 132,000
It should be noted that the main application scenario of CommonJS specification is server-side programming, so the strategy of loading modules synchronously is adopted. If we rely on three modules, the code will load them one by one.
