Anti-Advanced Server is a protection service against network attacks. Its principles mainly include the following aspects:

1. Traffic cleaning: the anti-defense server identifies and filters malicious traffic through real-time monitoring and analysis of traffic. It can identify common attack types, such as DDoS attacks, SYN Flood attacks, etc., and pass normal legitimate traffic to the target server while blocking malicious traffic.

2. Distributed architecture: Anti-DDoS servers usually adopt a distributed architecture and are deployed in data centers in multiple geographic locations. This can disperse the pressure of attack traffic and increase the ability to resist attacks. When one server is under attack, other servers can share the traffic and maintain service availability.

3. IP filtering and blocking: the high-defense server can filter and block IP addresses according to preset rules. It identifies malicious IP addresses and blacklists them, preventing them from accessing the target server. This helps reduce attack traffic and increases server security.

4. Load balancing: the high-defense server can be used as a load balancing device to distribute traffic to multiple back-end servers. This helps distribute traffic, improving server performance and stability. At the same time, it can also dynamically adjust the load of the back-end server and distribute the attack traffic to multiple servers, thereby reducing the impact of the attack on a single server.

5. Real-time monitoring and response: The high-defense server will monitor the traffic, connection and server status in real time. Once abnormal or attack behavior is detected, corresponding response measures will be taken immediately. This can include automatically banning malicious IP addresses, adjusting traffic distribution, notifying administrators, and more.

In short, the high-defense server uses a variety of technical means, including traffic cleaning, distributed architecture, IP filtering and blocking, load balancing, and real-time monitoring and response, to protect the target server from network attacks. It can provide higher network security and availability, and ensure the normal operation of the server.