To ensure the stable operation of servers, enterprises must attach importance to network security CC protection. The official commercialization of 5G networks in 2019 will lead to more and more intelligent IoT devices in the future, and the cost of CC attacks will become lower and lower, which directly leads to the continuous increase in the frequency of CC attacks.
Companies generally face network attacks and will directly choose to use a firewall (WAF) to defend against CC attacks. It mainly controls its application or access control by detecting application layer data. Simply put, it is a mechanism that provides a defense mechanism for Web applications after implementing a security policy against HTTP or HTTPS. At the same time WAF has cloud WAF, soft WAF and hard WAF.
Cloud WAF means that users do not need to deploy hardware facilities or install software programs in their own networks, and mainly use DNS resolution to achieve CC protection for website security. General user requests are first sent to cloud nodes for detection. Any abnormality will be intercepted, and the request will be forwarded to the origin server if there is no abnormality.
Soft WAF is installed on the server that needs to be protected, usually WAF is used to listen to the port. Or it is the way of web container extension for request detection and blocking.
Hard WAF is to deploy WAF serial on the front end of Web server to detect and block abnormal traffic.
Some websites and games, as well as financial corporate website personnel should be familiar with traffic attacks. This problem has always been their biggest headache. Therefore, in the process of CC protection, the WAF fingerprint recognition architecture is used to make the corresponding permission strategy, so as to avoid falsely sealing normal user access requests.
The WAF mechanism provides security guarantee for WEB application firewalls. Based on years of application security technology accumulation, the fingerprint recognition technology firewall independently developed and developed based on cloud security big data provides real-time protection of websites, prevents CC and resists DDoS attacks, and effectively blocks Hacking actions such as vulnerability attacks, web page tampering, malicious scanning, etc.
Some companies may also access high-defense CDNs, with no upper limit for over-CC protection, big data smart business defense capabilities, support for multi-dimensional custom precision access control, and countermeasures such as human-machine identification and frequency control, which can be smart Efficiently filter spam access and effectively prevent CC attacks from the most complete virus signature database in China.
The design idea of CDN is to avoid bottlenecks and links that may affect the speed and stability of data transmission on the Internet as much as possible, so as to make content transmission faster and more stable. By placing node servers everywhere in the network, forming a layer of intelligent virtual network on the basis of the existing Internet, the CDN system can monitor the network traffic and the connection of each node, load status, distance to users and response time in real time Such comprehensive information will be the user's request.
Under the premise of a certain network speed, CDN is like a courier in the network, and CDN is a very smart courier. TA is not using brute force to run and bump, TA has also contracted to build a lot of express delivery points, nearby express delivery (cache); TA is good at optimizing delivery routes (scheduling); it will also repack packages more reasonably (protocol optimization) .
Domestic websites with high traffic, live broadcasts, and video platforms all use CDN network acceleration technology. Although the website visits are huge, it feels fast no matter where you visit. In general, if the server is on Netcom, the access of telecommunications users is very slow; if the server is on telecommunications, the access of Netcom users is very slow.
By adding a new network structure to the existing Internet, the content of the website is published to the cache server closest to the user, and the DNS load balancing technology is used to determine the source of the user to visit the nearest cache server to obtain the required content. Internet network congestion improves the response speed of users visiting websites, just like providing multiple accelerators distributed in various places to achieve the purpose of speeding up multiple websites quickly and redundantly.
The website cannot be fully protected against CC, but when you find that the website is attacked, don’t panic too much. You can choose appropriate security protection measures to protect your own interests. In particular, industries in the "hardest-hit areas" where cyber-attacks such as e-commerce, finance, training, beauty, and games should pay more attention to network security protection to avoid business interruption caused by attacks that cause economic losses and user loss.
This article is from: https://www.zhuanqq.com/News/Industry/274.html