In recent years, with the continuous popularization of the Internet, DDoS attacks have been spreading on the Internet, and the damage has been escalating. DDoS protection is a systematic project. DDoS is also a distributed denial of service attack. It uses the same method as ordinary denial of service attacks. , But there are multiple sources of attack. The current DDoS attack is a large-scale attack that is distributed and coordinated more widely. Of course, its destructive ability is also unprecedented.
In the face of various potentially unpredictable attacks, more and more companies seem at a loss and powerless. A single high-defense DDoS server is like a high-power firewall that can solve limited problems, and the clustered high-defense DDoS technology cannot be mastered and used by ordinary enterprises. How can we ensure that in the case of DDoS attacks, DDoS protection is done to ensure the normal operation of the server system or to reduce the harm of DDoS attacks?
The most direct ways are: use high-performance equipment, increase network bandwidth, improve hardware configuration, increase the load capacity of the web server, and make the website as static as possible.
Where there are people, there are rivers and lakes, and the same is true on the Internet. Today, with the continuous development of the network, for enterprises, whether the network server is safe may involve the survival of the enterprise, and the importance of the network server is more prominent. In an increasingly complex network environment, it is necessary to ensure that the WEB server runs all-weather without obstacles. As far as DDoS protection is concerned, there are currently two main aspects: cleaning and filtering of abnormal traffic, and distributed cluster defense.
On the one hand, the DDoS firewall is used to clean and filter abnormal traffic, and through top technologies such as packet rule filtering, data flow fingerprint detection filtering, and data packet content customization filtering, it can accurately determine whether the external access traffic is normal, and further prohibit abnormal traffic. filter.
On the other hand, distributed cluster defense is the most effective way to defend against large-scale DDoS attacks in the network security community. The characteristic of distributed cluster defense is to configure multiple IP addresses on each node server, and each node can withstand DDoS attacks of no less than 10G. If a node is attacked and cannot provide services, the system will automatically switch according to the priority setting Another node returns all the attacker's data packets to the sending point, making the attack source paralyzed, and affecting the company's security execution decisions from a more in-depth security protection perspective.
At present, it is impossible to achieve protection against DDoS attacks by relying on a single protective measure, but it is certain that it is impossible to completely eliminate DDoS. However, it is possible to minimize losses through appropriate measures to resist DDoS attacks.
This article is from: https://www.zhuanqq.com/News/Industry/309.html