Basic Proxies Knowledge

Overseas private IP and native IP are two different IP address types, and there are significant differences in their definitions, characteristics and application scenarios. Overseas private IP is usually an IP address associated with a specific geographical location or country provided by a specialized service provider. These IP addresses are exclusive and not shared with other users. They can be used to bypass geographical restrictions, visit websites in specific countries or regions, protect users' privacy and provide anonymous access. Overseas private IP has obvious advantages in protecting users' privacy, providing anonymous access and bypassing geographical restrictions, and is suitable for users who need these functions. Native IP refers to the IP addresses directly assigned to users by Internet service providers (ISP), which usually reflect the actual geographical location and network connection of users. Native IP provides a direct connection between user equipment and the Internet, so it is easier to be verified in security filtering and firewall settings, and is usually regarded as a safer option. Native IP address can also improve the security and trust of the server, which is suitable for scenarios that need to establish a direct connection with the Internet, provide reliable services and integrate various online services and tools. When choosing whether to use overseas private IP or native IP, users need to make decisions according to their actual needs and goals. If you need to protect privacy, provide anonymous access or bypass geographical restrictions, overseas private IP may be a better choice; And if you need to improve the security, trust, functionality and flexibility of the server, then native IP may be more suitable. Native IP has many advantages, such as authenticity, high-speed connection, geographical correlation, difficulty in being blocked, wide applicability, reliability and stability, etc. It can be identified by checking the WHOIS information of IP, performing reverse DNS query and testing the network delay and stability. Generally speaking, overseas private IP and native IP have their own unique advantages and applicable scenarios, and users should choose the most suitable IP type according to their own needs.

Proxy Host and Port are important concepts in computer network, and they play a key role in data transmission and network communication.  Proxy Host: A proxy host is a server that acts as an intermediary between the client and the target server. The request sent by the client first reaches the proxy server, and then the proxy server forwards it to the target server, and returns the response from the target server to the client. The proxy server can cache the requested content, and when other clients request the same content, they can provide it directly from the cache, which reduces the request to the target server and improves the response speed. Proxy servers can filter requests and responses, such as blocking malware, advertisements or inappropriate content. The proxy server can hide the real IP address of the client and provide a certain degree of anonymity. Allocate requests among multiple servers to optimize resource usage and response time. Proxy servers can control access to specific resources and enforce security policies. Connection Port (port): Port is a logical concept in network communication, which is used to distinguish different services or processes. Each network connection consists of an IP address and a port number, so that data can be sent to the correct service or application accurately. Different port numbers are used to identify different network services. For example, HTTP services usually use port 80, while HTTPS services use port 443. A server can run multiple services at the same time, and each service listens on different ports, thus allowing multiple network connections to be made at the same time. By restricting access to specific ports, you can increase network security. For example, closing unnecessary ports can reduce the risk of being attacked. Port configuration is a part of network management to ensure the correct operation and maintenance of network services. In practical application, the proxy host and the port work together to ensure the efficiency and security of network communication. For example, when a client wants to access a resource on the Internet, it may send requests through a proxy server. The proxy server listens on a specific port to receive these requests and forwards them to the target server.

IP location technology is a method to determine its geographical location by analyzing IP address, which plays an important role in network security, market analysis, advertising targeting and other fields. This technology can help identify the country, city and region corresponding to IP address, and even more detailed geographic information such as postal code, latitude and longitude. In the field of network security, IP location technology can be used for intrusion detection and defense, and potential intrusion behaviors can be found in time by analyzing network traffic and identifying IP addresses. In addition, it can also assist threat intelligence analysis, virtual private network management and network traffic analysis, help security teams track the source and behavior pattern of network threats, provide valuable threat intelligence, and guide the formulation and adjustment of security policies. However, IP location technology also has some challenges and limitations. For example, the dynamic allocation of IP addresses and the use of proxy servers may lead to inaccurate positioning results. In addition, privacy protection is an important issue, and it is necessary to give full play to the advantages of this technology while protecting users' privacy.  In order to protect personal privacy, users can take some measures, such as using virtual private network (VPN) to hide the real IP address, using proxy server as an intermediary to forward requests, or using Tor network to hide the IP address and online behavior.  In a word, IP location technology is a powerful tool, but the balance between accuracy and privacy protection needs to be considered when using it. With the continuous progress of technology, it is expected that IP geo-location technology will become more accurate and intelligent, bringing more possibilities and opportunities for network security and user experience.

Enterprises use IP proxy to protect their e-mail system mainly to enhance security and improve the efficiency of e-mail. The following are several key protection measures provided by IP proxy for enterprises:  Anonymity: IP proxy hides the real IP address of enterprise server to prevent targeted attacks, such as DDoS attacks, and also protects the real identity of users from being revealed.  Encryption: The proxy server can encrypt the whole network traffic, which increases the protection of e-mail content and prevents sensitive information from being intercepted and tampered with. Preventing spam: Using proxy IP to send mail can avoid being judged as a spammer by a mail service provider because a single IP sends a large number of mails, thus improving the arrival rate of mail.  Network security: The use of proxy IP can reduce the need for direct connection to the Internet. As an intermediary, proxy server can filter out malicious requests and attacks and improve the defense capability of the website.  Data protection: IP proxy service providers usually abide by strict data protection standards, such as ISO 27001 information security management system, to ensure the safety of user data.  Mail encryption: In addition to using proxy IP, enterprises can also adopt mail encryption technology, such as PGP, to ensure the security of mail content during transmission and prevent unauthorized access. Improve efficiency: Proxy IP can support multi-thread mail sending, effectively improve the efficiency of mass mailing, and at the same time support automatic switching and disabling of IP that cannot be sent to ensure the continuity of mail sending. Through these measures, enterprises can ensure the security of e-mail system and the reliability of e-mail, thus protecting enterprise communication from network threats.

The importance of multi-account management and proxy is reflected in many aspects, including avoiding platform restrictions and detection, protecting users' privacy and security, improving network access speed and stability, and realizing multi-regional business layout. First of all, using proxy IP can avoid IP addresses being associated when managing accounts on multiple network platforms, and reduce the risk of account being blocked. Proxy IP provides IP addresses in different geographical locations, which helps to circumvent the platform's restrictions on the number of registered or logged-in accounts under the same IP address.  Secondly, proxy IP helps to protect users' privacy and security. By hiding the user's real IP address, the third party cannot directly track the user's real identity and location, which increases the security of users when using multiple accounts. In addition, proxy IP can improve the speed and stability of users' network access by optimizing network connection and routing. Proxy servers usually have faster network connection and more stable service quality, providing users with a smoother network experience. For users who need to do business in different regions, proxy IP can provide IP address resources on a global scale, so that users can make business layout and strategy according to market demand and laws and regulations in different regions. At the enterprise level, the security of multi-account management is particularly important. For example, when a large enterprise goes to the cloud, it will establish a multi-account system according to different business lines, projects or usage scenarios, so as to realize the independence of cost settlement and operation and maintenance management, and at the same time reduce the risks caused by excessively broad permissions under a single account. The use of proxy IP can also improve work efficiency, especially in data collection, crawler tasks, privacy protection and security. When choosing a suitable proxy IP provider, we need to consider its stability, speed, IP number and distribution, and pay attention to privacy protection measures.  In addition, multi-account management tools, such as AdsPower fingerprint browser, ensure the independence and security of each account by generating independent browser environment and device fingerprints, effectively improve the proxy operation effect and reduce account risks. In terms of short video IP creation, multi-account management can help the team to operate each account more efficiently, and make fans "addicted" to the content by strengthening the IP account staffing. To sum up, multi-account management and proxy are important tools to improve the efficiency and security of network activities, and both individuals and enterprises can optimize account management strategies through rational use of these tools.

There are several ways to use proxy between public network and private network: HTTP proxy server: This is a common proxy method, and an HTTP proxy server can be set in the browser to realize the forwarding of network access. The specific setting method will vary according to different browsers. For example, in IE, you can set it through "Tools /Internet Options …", while in Firefox, you can set it through "Tools/Options …". In addition, you can also use some browser extensions to realize fast proxy switching, such as QuickProxy and AutoProxy. VPN (Virtual Private Network): VPN is a technology to establish a private data communication network in a public network, which can provide a secure data transmission tunnel service for enterprises or individuals. VPN can be divided into intranet VPN, remote access VPN and extranet VPN, which are classified according to their different functions. The realization of VPN depends on tunnel protocols, such as PPTP, L2TP and IPSec. NAT (Network Address Translation): NAT technology allows an entire organization to share a public IP address, while each internal device has a private IP address. Through NAT technology, devices in private networks can access public networks, while users in public networks cannot directly access devices in private networks unless through port mapping technology.  Port mapping technology: Port mapping is a kind of NAT, which can map a port of an external network host to a specific port of a machine in the internal network, so as to realize the access of the external network to specific services in the internal network. This is very useful when you need to access the intranet server from the public network. Manually set the proxy: In Windows system, you can manually configure the proxy server through "Network and Internet" settings in Control Panel. In Linux system, you can set the proxy IP by modifying the network configuration file. Browser proxy settings: For example, in Microsoft Edge browser, you can enter the system configuration page through the browser's Settings menu and find "Open computer proxy settings" to configure the proxy server. Mobile VPN solution: For example, the mobile VPN solution released by Huawei can meet the needs of enterprise users for safe and convenient access to public networks and campus intranets anytime and anywhere, and has the characteristics of excellent experience, easy connection and high reliability. Reverse proxy configuration: For example, using Nginx for reverse proxy configuration, you can access your own server or website from the public network. This usually involves editing configuration files and setting related services. VPN configuration of Mac system: VPN configuration in Mac system can be realized by officially recommended software or manual configuration to improve the security in public Wi-Fi environment. Detailed analysis of VPN: VPN technology can realize safe and private data transmission on public network, and its core is to build a logical dedicated data channel, which has high security and privacy and can only be used by authorized users. These are some common ways to use proxies between public and private networks. Each method has its own applicable scenarios and advantages, and users can choose the appropriate agent method according to their own needs and environment.