Reflection attack is also called amplification attack. This kind of attack is mainly based on UDP protocol. Common attack types include NTP, DNS, etc. Generally, the traffic of request response is much larger than the traffic of request itself. Attackers can create large-scale traffic sources with small traffic bandwidth through the characteristic that traffic is enlarged, thus launching attacks on targets. Reflective attacks are not strictly a kind of attacks. They only use the business characteristics of certain services to launch Flood attacks at a lower cost. The detailed schematic diagram is as follows:
The SYN-Flood attack is currently the most common DDoS attack on the network, It is also the most classic denial of service attack. It takes advantage of a defect in the implementation of TCP protocol. By sending a large number of attack messages with forged source addresses to the ports where the network service is located, it may cause the half-open connection queue in the target server to be full, thus preventing other legitimate users from accessing. This kind of attack was discovered as early as 1996, but it still shows great vitality. Many operating systems, even firewalls and routers, cannot effectively defend against this kind of attack, and it is very difficult to trace it because it can easily forge the source address. Its packet characteristics are usually that the source sends a large number of SYN packets and lacks the last handshake ACK reply of the three handshakes.
1998年7月，香港新机场启用前十天，恐怖组织悄悄潜入香港……
这次写《倚天屠龙记》其实并不是他一时心血来潮，而是经过不少思量。
希望渺茫，不服输的麦昆能否重新取得胜利的荣光……
一位初入江湖，励志成为第一侠盗的天才少女——莫妍前来开封府，为蒙冤入狱的五师兄翻案。却因其敏锐的洞察力为包大人赏识，遁入公门成为开封府的女捕快，并与侠骨柔情的南侠展昭结为欢喜冤家。两人一路揭露层层阴谋，莫妍不仅揭开了自身身世之谜，也明白展昭心中“侠义”与“情感”的两难抉择......
For example, this ~
根据古典小说记载，世上有人有妖，妖会与人相恋，妖寿命千万年，人的寿命有限，人死了，妖活着。人会投胎转世，但投胎以后，不记得上辈子的爱。妖如果痴情的话，就去找狐妖“购买”一项服务，让投胎转世的人，回忆起前世的爱。狐妖红娘这一个角色就这样诞生，作品主要讲述了以红娘为职业的狐妖在为前世恋人牵红线过程当中发生的一系列有趣、神秘的故事。
影片为《侏罗纪世界》系列的完结篇，讲述了自从恐龙进入了人类世界，侏罗纪公园已经不复存在的故事。
这笔位于九龙山的宝藏正是张世诚兵
范依兰听到父亲的问话回答道：一切都还顺利，楼烦和匈奴的很多部族的马匹几乎全被哥哥花重金买了下来。
奈何这种情况根本就改变不了，最近一段时间英布一直提心吊胆，生怕什么时候惹上什么兵灾之祸。
在他们身后，另有一群气度不凡的人跟着。
Powerful document management
还有许多小乌龟壳，都是三四斤重的，除了这些就剩一点花生壳，再没旁的东西了。
In addition, As Zhang Xiaobo said, On the front line at that time, Wearing or not wearing a helmet is a "choice", Because Vietnam is located in Southeast Asia, The climate is hot and humid, Helmets are heavy and airtight, Wearing it is very easy to cause heatstroke, Particularly in fast maneuvers, This is the easiest way to do strenuous activities such as running. Therefore, in order for the troops to fight more efficiently, There would be no mandatory order for everyone to wear a helmet, If you don't want to wear it, you can choose to wear a cloth cap with eaves. So in the vast majority of relevant historical photos, Among our troops participating in the war, The highest percentage of helmets is worn by artillery, It is mainly used to defend the fragments of enemy artillery and various hard objects brought up by explosions in artillery warfare. Even some border militiamen wore helmets in large numbers, On the contrary, the impact is at the forefront, Infantry units carrying out a large number of mobile combat missions are rarely worn, Investigate its reason, It is for the infantry troops to carry out large-scale interspersed operations frequently. Exercise is enormous, It is really inconvenient to wear helmets, This approach has both advantages and disadvantages, It is not good to judge right or wrong here, but when facing such a horrible "killer bee" on the ground on 149, it is regrettable and regrettable that the heavy casualties caused by the low wearing rate of helmets have to be said. If they had worn helmets instead of military caps like Zhang Xiaobo, the casualties caused by the sting attack of "killer bee" would have been much smaller.
