就算目前表现得有些不好，那也是因为精彩的部分还没有到。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.Not only did I hear the voice, Almost half of the entire position 149 heard it, Then the position was bombed, The soldiers all took up their weapons and held the horses and bees in the air desperately to "hug the fire" (note: meaning to pull the trigger and fire), Even if there are some comrades who did not hear the cry of "fight", When they saw others firing, they followed suit. Those big wasps are abundant, Flying densely and bulky, So when we started shooting, The shooting rate is quite high, After the sound of the gun became one, it gradually became equal to the "buzzing" sound. No one can beat anyone, It feels strange that the two sounds are mixed together. Now that I think about it, It's like a rock band playing "heavy metal" (here "heavy metal" is a genre of rock music, Before the 1970s, This rock style is called 'hard rock', It was later renamed 'heavy metal', Of course, this is one of the more well-recognized explanations about the origin of the "heavy metal" genre of rock music. There are several other different explanations, As it is not relevant to this article, It will not be discussed in detail here), Then they gathered fire and shot for more than ten seconds. The left and right sides of the position were covered with the smashed bodies of this big wasp like rain. But then the bullets hit them more and more scattered in the air, finally forming a "circle", covering the whole position under, and then one by one dive to the ground, although they scattered, but in this way their distribution area is wider, and the spacing is widened, not as dense as before, plus flying fast,妹妹好，秦涛太淘气了。 19年前关于伯曼入室谋杀案的两篇调查报道，让时任《纽约时报》记者波碧·帕内尔（屋大维娅·斯宾塞 饰）声名大噪。现如今面对受害人女儿证词受人教导的新证据，主持热门真实罪案播客的她良心难泯决定重启调查——当年17岁入狱服刑至今的沃伦·凯夫（亚伦·保罗 饰）到底是否真如其母所说的那样清白无辜蒙冤受过？In order to deepen everyone's understanding, I will take Memecached service as an example. First of all, Memcached runs on port 11211 and supports TCP and UDP, which means that the attacker can forge the source IP. At the same time, Memcached supports the maximum key value but the data is stored in 1M, which means that the attacker receives tens of times larger data packets with smaller request packets.
