DDOS attacks are one of the most common ways of network attacks. Currently, network attacks are becoming more and more frequent. Protection against DDoS attacks has become a key part of major Internet companies to ensure the normal operation of online businesses. The principle of DDoS protection is to protect the target's system resources from being exhausted, so as to ensure the website's timely response to normal service requests.
Generally, if you encounter an attack during operation, high-defense IP and high-defense CND are the most commonly used products to protect against DDOS attacks. What is the difference between high-defense IP and high-defense CDN in use?
1. The working principle is different
The high defense CDN has multiple CDN nodes, which can effectively solve the instability in the data transmission process and accelerate the website; it can also solve the concurrency and reduce the pressure on the website server; it can hide the origin site and prevent the exposure of the domain name Traffic attacks initiated by hackers have comprehensively improved the security of website operations.
High-defense IP is configured with high-defense IP. When the server suffers a large-traffic DDoS attack and the service becomes unavailable, the traffic that originally directly accesses the user site is first diverted to the high-defense IP protection cluster, and then cleaned and filtered. The security business traffic is returned to the business server to ensure the possibility of the business in the DDOS attack scenario.
Two, different application scenarios
High-defense CDN and high-defense IP are two products with features to protect against DDoS attacks. But in application, the scope of application of the two is different. High-defense CDN is mainly aimed at website business, mostly in web services. The defense is mainly accessed through domain names, so the open ports are limited, mainly HTTP and HTTPS ports. Services using other ports cannot use high-defense CDN.
High-defense IP is the IP protection for the server, not the domain name, so it supports more services, such as applications, website services, games, software, etc. are all possible. The high-defense IP supports full port forwarding and can carry out self-defense port forwarding protection.
Three, different modes of operation
The high-defense CDN can perform data processing, can receive data and do a good job of forwarding between the node and the source station, and has the function of data cache memory storage. A stable and fast access to a website is an important indicator of a good website. High-defense CDN not only enables users to visit the nearest node, because the data cache has been accessed before, once the data requested by the user is consistent with the previous one, the CDN node can also transmit the data that the user needs to accept in the fastest time. user. Therefore, the high-defense CDN will be more suitable for website operators to protect against DDOS attacks.
Fourth, the key defense categories are different
High-defense CDN mainly defends against CC attacks, while the main type of attack defended by high-defense IP is DDOS attacks. Of course, in addition to the main defense types, it can also defend against a small number of other types of attacks.
Five, other differences
High defense IP has a higher killing rate than high defense CDN. Once the strict mode is enabled for the high-defense IP, some public IP, WIFI and other connections will be blocked, and the manslaughter rate of the high-defense CDN will be much lower. Of course, if your website is attacked by a large number of people, the killing rate is normal. No company can guarantee 100% zero killing, but hopes to reduce losses.
It can be concluded that the ability of high-defense CDN to protect against DDoS is weaker than that of high-defense IP, but the ability of high-defense CDN website acceleration is superior. It is suitable for users with higher requirements for website acceleration and DDoS defense, such as large portal websites. . And other businesses. High-defense IP is suitable for users who have low requirements for website acceleration, unclear DDoS attacks, and frequent and dynamic interactions with origin sites, such as game business, mutual small-scale promotion websites, and external business systems.
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