DDoS protection has always been an important part of maintaining Internet information security. The advent of 5G has made our work and life more closely connected with the Internet. This year, due to the global coronavirus crisis, e-commerce, distance learning, online communication and entertainment The rapid increase in users has driven the development of the Internet industry.
At the same time, DDOS attacks have become increasingly rampant with the rapid development of the Internet. From the original several megabytes and tens of megabytes to the current traffic attacks of tens of G and tens of terabytes, a large chain of interests has been formed. Whether it is the game industry, the financial industry, the Internet industry, the administrative industry, the media industry, or the banking industry, to varying degrees, they have been greatly troubled and lost by DDoS attacks.
For example, Blizzard games suffered DDoS attacks, which caused many games to be affected and players were unable to log in. Many banks such as the National Bank of Jordan, the National Bank of Korea, and the Bank of Monaco were unable to trade due to DDoS attacks, and LeTV suffered from DDoS which made its business unavailable. There are countless examples.
More and more companies are aware of the importance of DDoS protection, so what kind of measures should we all take against DDoS distributed denial of service?
The safe use of QQ, WeChat, Glory of Kings, League of Legends, Peace Elite, etc. that we come into contact with on a daily basis is actually inseparable from the DDoS protection solutions provided by Tencent Security. Over the years, DDoS attack technology has also been continuously upgraded. It supports cleaning and protection based on black and white lists, ACLs, regular rules, pattern matching and other strategies, achieving second-level detection and second-level response from attack initiation to attack traffic cleaning.
The most direct way to prevent DDoS is to use high-defense IP. The principle is to divert traffic to high-defense IP, clean and filter malicious attack traffic on high-defense IP, and then return normal traffic to the source site IP to ensure the origin site IP stable access. However, the cost of using high-defense IP is relatively high, which is not affordable for ordinary small and medium enterprises. For ordinary small and medium-sized enterprises, if they are attacked by DDoS, they can only defend against the attack by changing the server IP. Small and medium-sized enterprise websites generally use cloud servers, because it is relatively simple to change the IP of cloud servers.
The methods of protecting against DDoS attacks can be divided into passive and active methods. The use of high-defense IP services mentioned above belongs to active protection, and measures are taken to prevent attacks before they are attacked, so that when they encounter an attack, they are not afraid of being beaten. 'S caught off guard. Due to different services, different high-defense IPs can withstand different amounts of traffic. If the attack traffic is too large and exceeds the acceptable range of the high-defense IP, the IP will be temporarily blocked in order to protect the security of the computer room. At this time, the network may not be accessible normally, and certain passive measures may need to be taken at this time. In short, dealing with DDoS attacks is a big project, and only by taking multiple protective measures can you be more at ease.
This article is from: https://www.zhuanqq.com/News/Industry/286.html