DDoS (Distributed Denial of Service) attacks are a major threat in the field of network security. Attackers control multiple infected computers and send a large number of requests to the target server at the same time, causing the server to be overloaded and unable to provide services normally. In order to deal with this attack, high-defense servers came into being.

　　Working principle of high-defense servers:

　　1. Traffic analysis: The high-defense server will monitor network traffic in real time, analyze traffic characteristics, and identify abnormal traffic.

　　2. Filtering and cleaning: Once abnormal traffic is found, the high-defense server will immediately distinguish it from normal traffic and remove malicious requests by filtering and cleaning.

　　3. Load balancing: In order to ensure the normal operation of the server, the high-defense server will evenly distribute the remaining legitimate requests to multiple back-end servers to balance the load and prevent server overload.

　　4. Blacklist mechanism: The high-defense server will maintain a blacklist, add known attack source IP addresses to it, and intercept requests from these IP addresses, thereby effectively preventing attacks.

　　5. Block the attack source: For obviously malicious attack sources, the high-defense server can block its IP address in real time, so that it cannot continue to attack the server.

　　6. Real-time monitoring and alarm: The high-defense server will monitor the server status and traffic in real time and set thresholds. Once the preset alarm conditions are reached, an alarm will be sent to notify the administrator in time.

　　How does the high-defense server resist DDoS attacks?

　　Advantages of high-defense servers:

　　1. High bandwidth: High-defense servers usually provide large bandwidth and can effectively respond to high-traffic requests from large-scale DDoS attacks.

　　2. Flexibility: High-defense servers can be flexibly configured and adjusted according to actual needs to adapt to attacks of different scales and types.

　　3. Stable and reliable: High-defense servers are deployed with professional hardware equipment and software systems, with strong anti-attack capabilities, to ensure the stability and reliability of services.

　　4. Professional protection: High-defense servers are equipped with professional security teams that can respond and respond to new DDoS attack methods in a timely manner to ensure network security.

　　High-defense servers resist DDoS attacks through traffic analysis, filtering and cleaning, load balancing, blacklist mechanism, blocking attack sources, real-time monitoring and alarming. Its advantages lie in high bandwidth, flexibility, stability and reliability, and professional protection, which can effectively protect servers from the threat of DDoS attacks. For more details, please consult the editor Tiantian!