Distributed CDN pseudo blockchain

1. blockchain is a good thing, but it will change some instry technologies in a large area
decentralization
will hurt the interests of others
will make others unemployed
the data that can be deleted can not be deleted
and most enterprises can not use blockchain

2. The difference is the cost and the user's access speed. In terms of cost, the cost of advanced anti IP can be less. Access speed CDN advanced defense speed can be faster.

3. The full name of CDN is content delivery network. Its purpose is to add a new layer of network architecture in the existing Internet to publish the content of the website to the closest network to the user; Edge & quot;, Users can get the required content nearby, solve the situation of Internet congestion, and improve the response speed of users to visit the website. Technically, it can solve the problem of slow response speed caused by small network bandwidth, large user visits and uneven network distribution That is to say, the content of a server is divided into several servers on average, and the servers are intelligently identified, so that users can obtain the nearest server from users, and improve the speed.

distributed system is a software system built on the network. Because of the characteristics of software, distributed system has a high degree of cohesion and transparency. Therefore, the difference between network and distributed system lies more in high-level software (especially operating system) than in hardware. Cohesion means that each database distribution node is highly autonomous and has a local database management system. Transparency means that each database distribution node is transparent to the user's application, and can't see whether it is local or remote. In the distributed database system, users can't feel that the data is distributed, that is, they don't need to know whether the relationship is divided, whether there is a plicate, where the data is stored and where the transaction is executed.

4. ... the difference is the cost and the user's access speed. The cost of advanced defense IP is a little more, but the defense is high. Access speed CDN defense speed can be faster, CDN defense nearby attacks, CDN nodes in other normal areas are not affected, but CDN defense is lower. The effect of advanced anti DDoS IP in Alibaba cloud is particularly good. The advanced anti DDoS IP launched by Alibaba cloud SIPO technology saves a lot of cost & nbsp& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;& emsp;

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The difference is the cost and the user's access speed. In terms of cost, the cost of advanced anti IP can be less. Access speed CDN advanced defense speed can be faster

advanced anti DDoS IP -- advanced anti DDoS IP is a value-added protection service launched for Internet servers in the case of service unavailability caused by DDoS attacks with large traffic. Advanced defense IP refers to the IP segment provided by the advanced defense room, which is mainly used to defend against DDoS attacks in the Internet