Basic Proxies Knowledge

Both proxy and firewall are important parts of network security, but their functions and working principles are different. Proxy is a kind of network intermediary service, which acts as a bridge between client and server. Proxy server can cache data, improve access speed, and at the same time, it can analyze and filter data packets at the application layer, providing a certain degree of security and anonymity. The proxy server can hide the user's real IP address and use the proxy server's IP address to communicate with the target server, which helps to protect the user's privacy. Proxy servers usually work in the application layer of OSI model, so they can handle higher-level protocol details, such as HTTP and FTP.  Firewall is a more basic security measure, and its main function is to monitor and control the data flow in and out of the network. Firewall allows or denies the transmission of data packets through predefined security rules, thus protecting the internal network from external threats and unauthorized access. A firewall can be a hardware device, a software program, or a combination of both. Firewalls usually work at the network layer and the transport layer, and check the source address, destination address and port number of the packet to decide whether to allow the packet to pass. Generally speaking, agents focus more on providing intermediary services and a certain degree of privacy protection, while firewalls focus on network access control and preventing unauthorized access. In practical application, proxy and firewall are often combined to provide more comprehensive network security protection.

Proxy server configuration error: The IP address and port number of the proxy server may be misconfigured. If the proxy server address and port number entered are incorrect, the browser or operating system will not be able to connect to the proxy server correctly, resulting in the unchanged IP address.  Browser cache problem: Sometimes the browser cache may cause the IP address to appear unchanged. The browser may cache the previous network requests and responses, so that when you look at the IP address, you will see the cached results.  Operating system proxy settings are not effective: When configuring proxy settings at the operating system level, you may need to restart your browser or computer for the settings to take effect. If the setting does not take effect, the IP address will not change.  Wrong proxy type is used: different proxy types (HTTP, HTTPS, SOCKS, etc.) are suitable for different scenarios. If you need to use HTTP proxy, but configured SOCKS proxy, the IP address may not change.  Proxy IP tunneling technology: the tunneling technology of proxy IP can improve the security and privacy of data transmission, but if the tunneling technology is not properly configured or applied, it may also lead to inconsistent IP display.  Interference from firewall or security software: Some firewalls or security software may prevent the proxy from connecting, thus making it impossible to access the Internet through the proxy.  Restrictions on target websites: Some websites will ban specific proxy IP, especially those IP addresses that frequently request the same resource. This may prevent you from accessing these websites through proxys. In order to deal with the measures of banning the target website, proxy service providers and users have adopted various strategies. First of all, proxy service providers provide more unblocked proxy IPS for users to use by constantly updating and expanding the IP pool. An industry report shows that leading proxy service providers update IP addresses by more than 50% every month, effectively reducing the risk of IP being banned. Secondly, users can reduce the possibility of triggering anti-crawler mechanism by setting reasonable access frequency and request interval. An experiment shows that the probability of being banned can be reduced to less than 10% by intelligently adjusting the access frequency. Finally, some advanced users and enterprises adopt more complex technical means, such as the combination of residential proxys or data center proxys, and dynamic IP rotation technology to simulate the access behavior of real users and reduce the risk of being banned. To ensure the correctness of the proxy server configuration, users should first verify the IP address and port number of the proxy server. According to a survey of proxy server connection failure, about 35% of the failure cases are caused by configuration errors. Users can obtain correct configuration information by visiting the official website of the proxy server provider or contacting technical support. In addition, users should also check whether the proxy server responds to the ping command to verify network connectivity. Browser caching may cause the displayed IP address to be inconsistent with the actual proxy IP. Users should clear the browser cache regularly, especially after changing proxy servers or changing proxy settings. An experiment shows that after clearing the cache, the probability of correctly displaying the proxy IP increases by 20%. Users can access the option of clearing the cache through the settings menu of the browser, and some browsers such as Chrome and Firefox also provide shortcuts to clear the cache quickly. Restarting the browser or computer is an effective means to ensure that the proxy settings take effect. According to a survey on system proxy settings, after the restart, the effective ratio of proxy settings increased from 45% to 85%. Restart operation can clear the cache of system and application, and ensure that the new proxy settings are loaded and applied correctly.Users should confirm whether the proxy type used is suitable for their usage scenarios. For example, HTTP proxy is suitable for ordinary web browsing, while SOCKS proxy is suitable for data transmission that requires higher security level. A network traffic analysis shows that the success rate of data transmission has increased by 15% after the correct choice of proxy type. Users can find the recommended proxy type in the document or setting interface of the proxy server. Firewall or security software may prevent the proxy from connecting. Users should check the firewall rules to ensure that the IP address and port of the proxy server are not blocked. In addition, users should also check the settings of security software to confirm that it will not interfere with proxy traffic. A survey on enterprise network shows that the success rate of proxy connection has increased by 30% after adjusting firewall and security software settings. If the problem still exists, users can try to test with other proxy IP. This can help users determine whether the problem is related to a specific proxy IP. According to a user feedback survey, after replacing the proxy IP, about 50% users successfully solved the problem of inconsistent IP display. Users can obtain a new proxy IP through a proxy service provider or try to use a different proxy service. If none of the above steps can solve the problem, users should consider contacting an proxy service provider for help. The provider may provide professional technical support to help users diagnose problems and provide solutions. According to a survey on the satisfaction of agency service, more than 80% users said that their problems were effectively solved after contacting the service provider.

As an important component in the network, the proxy server's main function is to perform network requests and transactions on behalf of users, thus acting as an intermediary between users and visited networks. In this way, the proxy server can hide the real IP address of users, provide anonymity, and at the same time, it can bypass some geographical restrictions and increase network security. Among many proxy server types, mobile proxy and residential proxy are widely used because of their unique characteristics and applicable scenarios.  Mobile proxys provide proxy services through mobile networks, using IP addresses provided by mobile operators, which are usually associated with mobile devices, such as 4G or 5G networks. The main advantage of mobile proxy is that it can simulate the network behavior of real mobile users, which is especially important for application scenarios that need to test or collect data on mobile devices. Speed: The speed of mobile proxys is affected by the quality of mobile networks. High-speed mobile networks such as 4G or 5G can provide faster connection speed, but the speed may fluctuate due to network congestion or insufficient signal strength. Stability: Due to the characteristics of mobile networks, the connection stability of mobile proxys may not be as good as that of residential proxys. Network congestion or frequent change of mobile IP address may lead to unstable connection. Applicable scenarios: Mobile proxys are especially suitable for scenarios that need to simulate the behavior of mobile users, such as mobile application testing, social media automation and geo-directional research.  Residential proxys provide services based on home broadband network, using IP addresses obtained from real residential users. These IP addresses behave more like the network behavior of ordinary home users on the Internet, so they have high anonymity and privacy protection.  Speed: Residential proxys are usually slower than mobile proxys because they rely on home Internet connections, and home broadband may not be as fast as mobile networks. Stability: Residential proxys usually provide more stable connections, because home broadband connections are not easily affected by network congestion, and IP addresses are relatively fixed. Applicable scenario: The residential proxy is suitable for a wide range of web crawler projects and general web browsing, especially those scenarios that need diversified IP addresses to avoid being blocked by the target website.  Generally speaking, mobile proxy and residential proxy have their own advantages, and which type of proxy server to choose depends on the specific application requirements. For example, if the task needs to simulate the behavior of mobile users or access mobile-specific content, the mobile proxy may be a better choice. On the contrary, if the task requires a stable IP address and a wide IP range, a residential proxy may be more suitable. Because of the particularity of its IP source, mobile proxy is very suitable for scenarios that need to simulate the behavior of mobile devices. According to market research data, mobile proxys perform well in the following scenarios:  Mobile application testing: Mobile proxy can simulate the user experience in different geographical locations and mobile network conditions, and ensure that the application can run normally in all situations. The test data shows that using mobile proxy for application testing can improve the efficiency of finding and fixing bugs by simulating the performance under different network conditions. Social media automation: Mobile proxys are suitable for automated scripts and robots, and are used to manage multiple social media accounts, publish content and interact. According to an industry report, using social media management tools of mobile proxys can increase user interaction rate by about 20%. Geographical Orientation Research: Mobile proxys can effectively simulate the behavior of mobile users in specific areas, which is very useful for market research and advertising orientation. Research shows that the click-through rate of geo-targeted advertisements using mobile proxys is about 50% higher than that of non-targeted advertisements. Because of the authenticity and stability of its IP, residential proxy is suitable for scenes that need extensive IP addresses and stable connections. The following are the main applicable scenarios of residential agency and related data support:  Web crawler project: the residential proxy provides a wide range of IP addresses, which is very important for web crawler projects that need to avoid IP blocking. It is estimated that the success rate of web crawler using residential proxy is about 75% higher than that of crawler using single IP source. Web browsing: Residential proxy is suitable for general web browsing, especially those application scenarios that need stable IP address and persistent connection. According to the survey of user experience, the user satisfaction of using residential proxy for web browsing is about 30% higher than that of using mobile proxy. Data analysis: The stable connection provided by residential proxys is suitable for large-scale data analysis and processing tasks. A research on data analysis task shows that using residential proxy can reduce the connection interruption rate by about 40% and improve the data processing efficiency. E-commerce monitoring: Residential proxys can simulate real users' visit and purchase behavior, which is very useful for e-commerce competitive intelligence and price monitoring. The market analysis report points out that e-commerce monitoring with residential proxys can provide more accurate market trend prediction. To sum up, mobile proxy and residential proxy have their own unique advantages and applicable scenarios. Mobile proxy performs better in scenarios that need to simulate the behavior of mobile users, while residential proxy is more suitable in scenarios that need stable IP address and wide IP range. Choosing an appropriate proxy type can significantly improve the efficiency and success rate of network tasks.  As two mainstream proxy server types, mobile proxy and residential proxy have their own unique characteristics and applicable scenarios. They play an important role in providing anonymity, bypassing geographical restrictions, and executing network requests. Mobile proxy provides users with a high degree of anonymity and the ability to simulate the behavior of mobile users because of the mobility characteristics of its IP source. They perform well in scenarios that need to simulate the environment of mobile devices, such as mobile application testing, social media automation and geo-orientation research. However, due to the characteristics of mobile networks, mobile proxys may fluctuate in connection stability and speed. Nevertheless, the mobile proxy can still provide fast connection in the high-speed mobile network environment to meet the basic network requirements.  Residential proxy is favored for its real IP source and stability. They are outstanding in scenes that require extensive IP addresses and stable connections, such as web crawler projects, web browsing and data analysis. The authenticity of the residential proxy makes it easier to bypass the anti-crawler mechanism of the website and provide a higher level of anonymity and privacy protection. However, the speed of residential proxy may be limited by the broadband connection of the family, and the cost is relatively high.  When choosing a proxy server, users should weigh according to their specific needs. If the task needs to simulate the behavior of mobile users or access mobile-specific content, mobile proxys may be a more suitable choice. On the contrary, if the task requires a stable IP address and a wide IP range, a residential proxy may be more suitable. By comprehensively considering the advantages and disadvantages of mobile proxy and residential proxy, users can make more wise choices to improve the efficiency and success rate of network tasks.

In today's Internet environment, many users want to improve the efficiency of online activities in various ways, especially on social media and instant messaging software. As one of the most popular instant messaging software in China, QQ has attracted a large number of users. However, frequent operations may lead to account blocking, and using proxy IP combined with bulk Q-hanging software has become an effective solution. This article will discuss in detail how to use proxy IP in combination with bulk Q-hanging software to improve account security and avoid blocking.1. Overview of proxy IPProxy IP is a technology that forwards requests through an intermediate server. Users access the Internet through a proxy server, hiding their real IP address and protecting their personal privacy. Proxy IPs are mainly divided into the following categories:1. Transparent proxy: does not hide the user's real IP address, usually used for caching and filtering.2. Anonymous proxy: hides the user's real IP address, but the server knows that the user is using a proxy.3. High-anonymous proxy: completely hides the user's real IP address, most suitable for scenarios that require high privacy protection.The benefits of using a proxy IP include:- Privacy protection: Hide your real IP address and enhance online security.- Avoid restrictions: Access geo-restricted content and bypass network censorship.- Multi-account management: Switch between multiple accounts to reduce the risk of being blocked.2. Functions of bulk Q-hanging softwareBulk Q-hanging software is an automated tool that can manage multiple QQ accounts at the same time and perform operations such as automatic login, sending messages, and adding friends. Common functions include:- Automatic login: Quickly log in to multiple QQ accounts to save time.- Group messaging: Send the same message to multiple friends or groups, suitable for marketing and promotion.- Scheduled tasks: Set up scheduled messages to keep the account active.However, frequent operations will alert the QQ system and cause the account to be blocked. Therefore, it is particularly important to use bulk Q-hanging software in combination with proxy IP.3. Combination of proxy IP and batch Q software1. PreparationBefore starting, you need to make the following preparations:- Select a suitable proxy IP: Select a high-anonymity proxy according to your needs to ensure privacy and security. You can purchase proxy services or use free proxy IPs, but you need to pay attention to the stability and security of free proxies.- Download batch Q software: Select a powerful Q software and ensure that it supports proxy settings.2. Configure proxy IPThe steps to configure proxy IP in batch Q software are generally as follows:1. Open software settings: Enter the software settings interface and find the "Proxy Settings" option.2. Enter proxy information: According to the type of proxy IP selected, enter the IP address, port number and authentication information (such as user name and password).3. Test connection: Test whether the proxy connection is successful in the software to ensure the smooth progress of subsequent operations.3. Perform batch operationsAfter the configuration is complete, you can start performing batch operations:- Login to multiple accounts: Use the set proxy IP to log in to multiple QQ accounts. Each account is operated through a different proxy IP to reduce the risk of being blocked.- Group message: Use the software's group message function to send messages to friends or groups to keep the account active.- Scheduled tasks: Set up scheduled message sending tasks to avoid performing a large number of operations in a short period of time.4. Monitoring and adjustmentDuring use, regularly monitor the account status and the effectiveness of the proxy IP:- Account security monitoring: Pay attention to whether the account has any abnormalities, such as frequent login abnormalities, being blocked, etc.- Proxy IP replacement: Regularly change the proxy IP to avoid using the same IP for too long and reduce the risk of being detected.4. PrecautionsWhen using proxy IP and batch Q software, you need to pay attention to the following points:- Choose a reliable proxy service: Make sure the proxy IP used is stable and secure to avoid account closure due to proxy problems.- Control operation frequency: Avoid too frequent operations and arrange the interval between sending messages reasonably.- Follow platform rules: Understand and follow the usage rules of QQ to avoid account blocking due to illegal operations.The combination of proxy IP and batch Q software provides users with a more efficient online operation method. Through reasonable configuration and monitoring, the risk of account blocking can be effectively reduced and the user experience can be improved. However, while enjoying the convenience, users should always be vigilant about network security, follow the usage regulations of relevant platforms, and ensure the security of their own accounts.

When grabbing product information, choosing static proxy or rotating proxy (also called dynamic proxy or proxy rotation) depends on your specific needs and the anti-crawler strategy of the target website.  A static proxy means that the same proxy server is used throughout the session or task. This method is simple and easy to use, but once the proxy server is blocked by the target website, the whole session may be affected. Static proxy is more suitable for those who are not strict with the anti-crawling measures of the target website, or you just want to do some simple data grabbing tasks quickly.  Rotating proxy involves using multiple different proxy servers during the session, which can reduce the risk of being detected by the target website, because your request seems to come from different geographical locations and IP addresses. This approach is more complicated, requires managing a pool of proxys, and may require additional logic to handle the rotation of proxys. Rotating proxy is suitable for situations that need long-term running, large-scale crawling or the target website has strict anti-crawling measures. According to the search results, here are some suggestions for choosing an proxy:  The data center proxy is fast and has high performance, which is suitable for tasks that need to send a lot of requests and are not too worried about IP being blocked, but IP is easy to be detected and blacklisted.  Residential proxys use real residential IP, which is more difficult to detect. It is suitable for crawling activities that require high success rate and anonymity, but it is usually more expensive than data center proxys. The mobile proxy uses the IP address assigned by the mobile network operator to the mobile device, which is suitable for use when a special mobile network is needed to grab the results, but the price is usually more expensive.  When choosing an proxy, you should also consider the following factors:  Anti-crawler strategy of target website: If the target website has strict anti-crawler measures, rotating proxy may be a better choice. Project budget: Rotating proxy is usually more expensive than static proxy because it requires more proxy servers and more complicated management.  Scale and duration of data capture: For large-scale or long-term capture projects, rotating proxy may be more suitable because it can reduce the risk of IP being blocked.  Quality and reliability of proxy: No matter which type of proxy is selected, it is necessary to ensure the stability and speed of proxy server so as not to affect the crawling efficiency. Generally speaking, if your crawling task requires high anonymity and low risk of blocking, rotating proxy is a better choice. If your requirements are simple and the anti-crawling measures of the target website are not strict, a static proxy may be enough.

Native residential IP proxy refers to IP addresses provided through real home broadband network, which are usually assigned to home users by Internet service providers (ISP). Compared with data center IP or proxy server IP, native residential IP has higher anonymity and credibility because it looks like the network connection of ordinary users. IP proxys of native houses play an important role in EDM marketing, which can help enterprises improve the delivery rate, opening rate and user participation. Mail sent by native residential IP proxy is more likely to be accepted by mail service providers, because they are not as easy to identify and filter as data center IP. By analyzing user data, enterprises can use native residential IP proxy to send customized marketing emails to target users, thus improving users' participation and loyalty. Combined with social media and other online activities, native residential IP proxys can help enterprises realize multi-channel marketing strategies and enhance the overall influence of brands. Using native residential IP proxy, enterprises can visit competitors' websites and social media platforms anonymously, and collect key product information, price strategies and market trends. By analyzing these data, enterprises can understand competitors' market positioning and user feedback, so as to optimize their own EDM content and marketing strategy. For example, by monitoring competitors' promotional activities and user participation, enterprises can adjust their preferential policies and EDM themes to improve users' response rate and purchase intention. IP proxy of native residence provides an effective tool for enterprises to monitor and analyze market trends. By collecting data from different regions and user groups, enterprises can identify which product features or services are the hot trends in the market and the changes in consumer demand. This information is very important for making EDM marketing strategy, because it can help enterprises to predict future market trends and adjust products and marketing strategies in time to meet market demand. For example, by analyzing holiday shopping trends, enterprises can introduce holiday-limited offers in EDM mail to attract users' attention and increase sales. Using native residential IP proxy, enterprises can safely manage multiple advertising accounts without worrying about the risk of being banned due to IP association. This strategy of risk diversification is very important for maintaining the advertising activities of enterprises. According to market research data, the probability that advertising accounts without IP proxy are banned is about 40% higher than that with IP proxy. In addition, through residential IP proxy, enterprises can simulate the network environment of different users and test the advertising strategy more truly, thus improving the pertinence and effect of advertisements. IP proxy of native residence allows enterprises to conduct advertising tests from different geographical locations around the world, which is very important for understanding regional differences and optimizing advertising content. For example, a cosmetic advertisement for the North American market may be found in tests in different regions, and the use of advertising materials containing local cultural elements can increase the click-through rate of users by about 20%. In addition, by analyzing user feedback and interactive data in different regions, enterprises can adjust their advertising strategies to adapt to local market preferences, thus improving the overall effect of advertising on a global scale. According to an industry report, the conversion rate of geo-targeted advertising campaigns is about 30% higher than that of non-targeted advertising campaigns. IP proxy of native residence also plays an important role in analyzing SEO strategies of competitors. By visiting competitors' websites from different geographical locations, enterprises can get a more comprehensive view of SEO strategies. This includes keyword usage, page optimization, link building, content marketing and many other aspects. For example, by analyzing the keyword rankings of competitors in different regions, enterprises can find that they may have stronger SEO strategies in specific regions. In addition, by monitoring competitors' reverse link profiles, enterprises can identify high-quality link building opportunities, and may enhance their website authority through similar strategies. According to the research of BrightData, the efficiency of enterprises that use residential IP proxy in the analysis of competitors' SEO strategies has increased by about 25%, mainly because they can simulate the behavior of real users more accurately and gain deeper insight. This analysis not only helps enterprises to understand the strengths and weaknesses of competitors, but also helps enterprises to formulate their own SEO strategies to achieve better market positioning and brand exposure.