Anti-ddos servers are often used to defend against network attacks, including distributed denial-of-service attacks (DDoS attacks). They use both hard and soft defense methods to enhance network security. The following are the differences between hard defense and soft defense in high-defense servers:

　　1. Hardware Protection:

　　Hard defense refers to the method of preventing network attacks through specially designed physical hardware. This hardware often includes specialized hardware devices such as firewalls, load balancers, and intrusion detection systems (IDS). The main features of hard defense include:

　　Real-time protection: Hard defense equipment can monitor network traffic in real time and quickly identify and block malicious traffic through hardware-level filtering and detection to reduce the impact of attacks on the network.

　　High performance: Because hard defense devices are specifically designed for network security, they usually have high performance and can handle large-scale attack traffic without affecting network performance.

　　Scalability: Hard defense devices usually have good scalability and can be easily expanded as needed to handle larger traffic and more complex attacks.

　　Blocking attacks: Hard defense equipment can block attacks in real time, isolate malicious traffic and not allow it to further harm the network.

　　2. Software Protection:

　　Soft defense is a method of protecting the network from attacks by using software at the server and network levels. Soft defense includes the use of security software, operating system patches, network configuration and application-level protection. The main features of soft defense include:

　　Multi-layer defense: Soft defense usually covers multiple layers, including operating systems, network protocols and applications. This multi-layered defense helps reduce cyber threats.

　　Customization: Soft defense can be customized to meet specific network and application needs. Administrators can configure rules, set permissions, and monitor logs to meet specific security needs.

　　Cost-effectiveness: Soft defense is generally more cost-effective because it does not require additional hardware equipment, but requires more management and configuration work.

　　Real-time monitoring: Soft defense usually provides real-time monitoring and alert functions so that administrators can respond to potential threats in a timely manner.

　　Difference and comprehensive use:

　　Hard defense emphasizes hardware-level protection and is suitable for large-scale DDoS attacks and other situations.

　　Soft defense pays more attention to multi-level comprehensive protection, including operating system and application level security.

　　Usually, high-defense servers use both hard defense and soft defense to provide comprehensive protection. Hard defense is used to deal with large-scale attacks, while soft defense is used to protect the security of applications and data. Using both approaches together helps ensure that networks and servers remain secure against a variety of cyber threats. At the same time, regular updates of software, operating systems and applications, as well as regular review and optimization of security policies, are also key steps to improve network security.