The general defense against DDoS attacks is limited. However, a high defense CDN can effectively defend against all types of DDoS attacks and detect and kill new types of attacks. Here we will understand the comparison and difference between common defense means and high defense CDN in defending against DDoS.

At present, ddos attacks have become one of the most dangerous and difficult attacks on the Internet. Almost all companies are looking for ways to defend against ddos attacks. There are four commonly used defense measures against ddos attacks:

1, source verification/reverse detection, source detection and human-machine recognition, including cookie, identification code, etc.;

2. Source restriction, that is, restricting source IP addresses or protocols. A blacklist is a common method.

3. Feature discarding: Packets are discarded based on their features or access behaviors, such as Payload, packet sending behavior, and QPS.

4, speed limiting, limiting the flow/access rate. Especially for the protection of large traffic ddos attacks, cooperation with telecom operators is also essential. These include implementing source cleaning in cooperation with the carrier and limiting specific protocols or IP addresses from specific sources on the carrier router.

In addition to the above methods, you can also use the high-defense CDN to defend against ddos attacks. The acceleration node has a very large bandwidth, and a single node has a strong capacity to withstand traffic, which can effectively cope with the sudden increase of network traffic. Moreover, high-protection CDN establishes intelligent redundancy and dynamic acceleration mechanism in its nodes and between nodes. This mechanism can distribute access traffic to multiple nodes in real time and intelligently distribute it.

When site ddos attack, the accelerating system will attack traffic all spread out, greatly reduces the pressure, and the site server nodes at the same time increase the difficulty that the network hacker attacks, can provide more time for the server management, can effectively prevent hacking and reduce the effects of various ddos attacks on web sites.

In addition, high anti-CDN can hide the source IP of the server, which greatly increases the difficulty of hacker attack and effectively improves the security factor of the source server.

Advantages of high-defense CDN compared with traditional CDN

1, dynamic section BAI point to accelerate DU

Compared with the traditional CDN server content distribution technology, high-security CDN acceleration pays more attention to real-time and efficient communication. In order to achieve this policy, the current high-security CDN website acceleration service selects dynamic node allocation technology, which can ensure that the Internet end users visit the nearest and most stable node in real time.

2, intelligent acceleration

Quickening node can intelligently identify online source and high-speed source, ensure the timely and useful communication, eliminate the impact of the bottleneck formation between different operators, realize the cross-operator network speed up, together with the dynamic website also has a good speed up effect;

3. Rich nodes

High-protection CDN server nodes are spread all over the world, which can relieve the pressure of single node, actively connect to the most secure node nearest to users, distribute content by stream, reduce bandwidth pressure, and then improve the visit speed of users.

4. Useful defensive capabilities

High anti-CDN server is precisely because of its rich nodes, so its own high anti-function, like the new world data CDN, hackers are attacked by nearby nodes, it will hide the source IP, useful to improve the hacking difficulty;

Prices are down across the board

The new high – protection CDN server price drops, suitable for small – and medium-sized enterprises.

This article from: www.lnyatoo.com/guandian/17…