With the popularization of the Internet and the acceleration of the informatization process, network security issues have become increasingly prominent. In the context of frequent cyber attacks and fraud, residential proxy and IP blocking issues have become a headache for Internet service providers (ISPs) and website managers. This article explores how to address this challenge from the technical, managerial and policy levels.

1. Definition and challenges of residential proxy

Residential proxying is the practice of using proxy servers to hide real IP addresses when individual users access the Internet through their home network. This approach makes it difficult to trace users’ whereabouts and identity information on the network, which greatly increases the difficulty of network management and security monitoring. 

As a result, some criminals use residential proxies to conduct cyber attacks, illegal transactions and other activities, posing a serious threat to Internet security.

2. The role and limitations of IP blocking

In order to deal with cyber attacks and fraud, many websites and service providers adopt IP blocking technology, which prohibits users with specific IP addresses from accessing their platforms. 

However, IP blocking is not a foolproof solution, as residential proxies allow attackers to easily change IP addresses and continue their malicious activities. In this case, traditional IP blocking is insufficient, and more innovative and comprehensive response strategies are needed.

3. Discussion of coping strategies

3.1 Technical means

For residential proxys, technical solutions include:

Behavior analysis and machine learning: Identify abnormal operations by analyzing users’ behavior patterns and activity paths.

Multi-factor authentication: Introducing a multi-level authentication mechanism to reduce the possibility of fraud.

IP geographical location verification: Verify the authenticity of the IP address based on geographical location information to prevent the use of proxy servers.

3.2 Management practices

At the management level, the following measures can be taken:

User education and awareness raising: popularize network security knowledge to users and reduce the use of malicious proxys.

Real-time monitoring and feedback mechanism: Establish a real-time monitoring system to detect abnormal activities in a timely manner and take measures.

Cooperation and information sharing: Strengthen cooperation with other ISPs and related institutions to share information and technical resources.

3.3 Policy recommendations

At the policy level, we should promote:

Improvement of laws and regulations: Strengthen the supervision of proxy servers and malicious network behaviors, and improve the corresponding laws and regulations system.

International cooperation and standard setting: Promote international cooperation, formulate unified network security standards and protocols, and jointly respond to globalized network threats.

To sum up, the issue of residential proxies and IP blocking is not only a technical challenge, but also requires the joint efforts and cooperation of the whole society. Only through a comprehensive response of technical means, management practices and policy recommendations can we effectively improve the level of network security protection and ensure the healthy development of the Internet space and the security of user information. 

It is hoped that the strategies and suggestions described in this article can provide reference for relevant practitioners and decision-makers to jointly build a safe and reliable network environment.