What is DDoS cloud defense? One of the biggest dangers known to the Internet world is DDoS attacks. As the saying goes, the higher the road, the higher the devil. The more convenient the cloud server is, the more rampant the DDoS attacks against the cloud server are. With the rise of the traffic industry, the increase in bandwidth, the continuous upgrading of DDoS tools, the implementation of DDoS denial of service attacks is becoming easier and easier, and the probability of DDoS attacks is increasing year by year!
　　In addition to malicious competition, retaliation and hacker extortion in the Internet industry, many cloud service providers, enterprise cloud servers and game servers have long been troubled by DDoS attacks. Whether it is users, service providers or even ordinary consumers, they are also facing losses. Solving the problem of DDoS attacks has always been a hurdle that hinders the progress of the Internet industry. Therefore, DDoS cloud defense, which is mainly based on defense, was born.
　　The emergence of DDoS cloud defense provides professional DDoS solutions. DDoS attacks, as a malicious attempt at distributed denial of service (DDoS) attacks, aim to attack the target or its surrounding infrastructure through a large amount of Internet traffic, thereby destroying the normal traffic of the target server, service or network. DDoS attacks achieve effectiveness by leveraging multiple compromised computer systems as the source of attack traffic. Exploited machines can include computers and other networked resources, such as IoT devices.
　　What is DDoS cloud defense? What are the functions of DDoS cloud defense?
　　1. What is DDoS cloud defense?
　　DDoS cloud defense generally refers to the cloud service provider building load nodes and pulling traffic to the cloud nodes, thereby preventing the source server from being attacked by DDoS, and also has the function of near-source acceleration. Cloud defense includes high-defense servers, high-defense smart DNS, high-defense server clusters, clustered firewall structures, as well as network monitoring systems and high-defense smart routing.
　　The SaaS service launched by DDoS cloud defense provides the best DDoS cloud cleaning solution for enterprise online business, cloud computing platforms, etc., effectively defends against various types of large-volume DDoS attacks, and fully guarantees business security. DDoS cloud defense adopts the latest defense technology and provides a layered defense mechanism. It uses a variety of defense technologies such as abnormal message inspection, feature filtering, source authentication, session analysis, behavior analysis, intelligent speed limit, and zombie worm detection to screen the traffic layer by layer, ensuring that the attack traffic can be identified and discarded by the corresponding algorithm.
　　What are the functions of DDoS cloud defense?
　　1. Detection and cleaning: Multiple cloud cleaning nodes are deployed in a distributed manner throughout the network to perform multi-level and multi-dimensional analysis and detection on the incoming data packets. Once abnormal traffic is found, it responds in seconds and immediately cleans the attack traffic, which can perfectly defend against various DDoS attacks based on the network layer, transport layer and application layer.
　　2. Reliable and stable: There is no need to make any adjustments in the business, and the service is uninterrupted throughout the process. Highly reliable and highly available services automatically detect and match attack strategies, provide real-time protection, and the cleaning service availability is 99.99%.
　　3. Intelligent scheduling: After the user starts defense on the security operation platform, its entire network access traffic will be dispatched to the nearest cloud cleaning nodes, and the user's real IP will be hidden. At the same time, the traffic size of each cloud cleaning node is monitored in real time. If a node is found to have too much traffic, it will automatically dispatch and divert to other cleaning nodes by optimizing resources to ensure effective cleaning of DDoS attack traffic without affecting the normal business of users.
　　2. What are the advantages of using DDoS cloud defense?
　　1. Powerful attack detection and protection capabilities, which can resist attacks with more than 200G traffic. It has massive DDoS defense that other firewalls do not have. Under certain stress tests, it can provide perfect defense against powerful DDoS attacks;
　　2. It can perfectly defend against known or unknown attacks. Some cloud defense series are built on the existing network foundation, which can enjoy high-quality defense performance without changing the source server. For example, high-defense CDN, high-defense IP, and game shield can all be used without changing the source server;  
　　3. Hiding the source station. In addition to the high-defense server, most other peripheral cloud defense products can effectively hide the source station, which can prevent attacks from directly reaching the source station and can fundamentally block traffic attacks. Make the source station run more safely under the umbrella of protection.
　　4. Rich management capabilities. Users can log in to the backend remotely through IE browser or remote desktop. The detailed attack data analysis system is conducive to statistical analysis of traffic; 5. Use intelligent load balancing system to ensure that the website's online service is not interrupted. Use cloud cleaning function to intelligently clean attack traffic, so that large-volume attack traffic is cleaned by the intelligent traction system and then reduced to the hardware protection wall, which can better defend against attacks and avoid interference to the source station; 6. The scale of cloud defense server can be dynamically expanded to meet the needs of application and user scale growth. It does not charge according to bandwidth, does not charge any initial configuration fees, and charges according to attack traffic, which can save 50 times the cost per year compared to hardware firewalls. Professional DDoS solution, easy to operate, greatly reduces the unstable operation of the server due to DDOS attacks. What products does ddos ​​cloud defense include? Cloud defense includes high-defense servers, high-defense CDN, high-defense IP, game shield and other products. However, DDoS cloud defense also has certain security risks. A complete cloud defense should include the rapid location and correction of internal vulnerabilities, such as gaps, devices, ports, etc., as well as the rapid discovery and blocking of external threats, but DDoS cloud defense cannot do this in all aspects.