In the process of using the Internet, the proxy server is a very important tool that can help users hide their real IP addresses, increase Internet speed, and access restricted websites. When configuring a proxy server, it is crucial to correctly fill in the proxy server's IP address and port number. This article will introduce in detail how to fill in the proxy server IP and port, as well as related precautions.

1. What is a proxy server?

A proxy server is an intermediary server located between the user and the Internet. When a user makes a request, the request is first sent to the proxy server, which then forwards the request to the target website. The response of the target website is also returned to the user through the proxy server. In this way, the proxy server can hide the user's real IP address and provide a certain degree of privacy protection.

Types of proxy servers

1. HTTP proxy: Mainly used to process HTTP protocol requests, suitable for web browsing.

2. HTTPS proxy: Used to process encrypted HTTPS requests, providing higher security.

3. SOCKS proxy: Supports multiple network protocols and is suitable for various network applications, such as games, video streaming, etc.

2. Basic concepts of proxy server IP and port

1. IP address

The IP address of a proxy server refers to the unique identification of the proxy server in the network. Every device connected to the Internet has an IP address, and the proxy server is no exception. The IP address can be in IPv4 (such as 192.168.1.1) or IPv6 (such as 2001:0db8:85a3:0000:0000:8a2e:0370:7334) format.

2. Port number

The port number is a 16-bit number used to identify a specific service or application. Each service communicates on the server through a specific port number. Common port numbers are:

- 80: HTTP protocol

- 443: HTTPS protocol

- 1080: SOCKS proxy

When filling in the proxy server information, the user needs to enter the correct IP address and the corresponding port number to ensure that the proxy server can work properly.

3. How to get the IP and port of the proxy server

There are usually several ways to get the IP address and port number of the proxy server:

1. Purchase a proxy service

Many companies provide proxy services, and users can obtain stable proxy IP and port numbers by purchasing them. These services usually provide detailed instructions, including how to configure the proxy.

2. Free proxy list

There are many websites on the Internet that provide free proxy server lists, from which users can choose the appropriate proxy. It should be noted that the security and stability of free proxies may be low, so be cautious when using them.

3. Self-built proxy server

For users with technical capabilities, you can get your own IP and port by building your own proxy server. This method can provide higher security and control, but requires certain technical knowledge.

4. How to fill in the proxy server IP and port

1. Windows system

The steps to set up a proxy server in Windows system are as follows:

Step 1: Open network settings

1. Click the "Start" menu and select "Settings".

2. Go to "Network and Internet".

Step 2: Select proxy settings

1. In the menu on the left, select "Proxy".

2. In the "Manual proxy settings" section, turn on the "Use a proxy server" option.

Step 3: Fill in the IP and port

1. Enter the IP address of the proxy server in the "Address" box.

2. Enter the corresponding port number in the "Port" box.

3. If you need to use the same proxy for all protocols, check the "Use the same proxy for all protocols" option.

Step 4: Save settings

Click "Save" to apply the changes.

2. macOS system

The steps to set up a proxy server in the macOS system are as follows:

Step 1: Open network settings

1. Click the Apple icon in the upper-left corner of the screen and select "System Preferences".

2. Select "Network".

Step 2: Select a wireless or wired network

1. Select the network connection currently in use (such as Wi-Fi or Ethernet) on the left.

2. Click "Advanced".

Step 3: Set up a proxy

1. Select the "Proxy" tab.

2. Check the type of proxy you want to use (such as "HTTP Proxy", "HTTPS Proxy", etc.).

3. Enter the IP address in the "Proxy Server" box and the port number in the "Port" box.

Step 4: Save settings

Click "OK" and then click "Apply" to save the changes.

3. Android devices

The steps to set up a proxy server in an Android device are as follows:

Step 1: Open Wi-Fi settings

1. Open the "Settings" app and select "Network & Internet".

2. Click "Wi-Fi" and find and long press the connected network.

Step 2: Modify network settings

1. Select "Modify network" or "Network settings".

2. In the advanced options, find the "Proxy" setting.

Step 3: Fill in the IP and port

1. Select "Manual" proxy.

2. Enter the IP address in the "Proxy Host Name" box and the port number in the "Proxy Port" box.

Step 4: Save Settings

Click "Save" to apply the changes.

4. iOS Devices

The steps to set up a proxy server in an iOS device are as follows:

Step 1: Open Wi-Fi Settings

1. Open the "Settings" app and select "Wi-Fi".

2. Find and tap the connected network.

Step 2: Set up a proxy

1. Scroll down and find the "HTTP Proxy" option.

2. Select "Manual".

3. Enter the IP address of the proxy server in the "Server" box and the port number in the "Port" box.

Step 3: Save Settings

Return to the previous menu and the settings will be saved automatically.

4. Notes

1. Ensure the information is accurate: When filling in the IP and port of the proxy server, make sure there are no input errors. Incorrect IP addresses or port numbers will cause connection failures.

2. Choose the appropriate proxy type: Choose the appropriate proxy type (HTTP, HTTPS or SOCKS) as needed. Different proxy types are suitable for different scenarios.

3. Test proxy connection: After setting up, you can check whether the proxy is working properly by visiting a specific website or using a network test tool.

4. Pay attention to security: When using a proxy server, pay attention to protecting personal privacy and avoid using unsafe proxy services.

Correctly filling in the IP address and port number of the proxy server is an important step to ensure normal network connection. Through the detailed steps and precautions provided in this article, users can easily configure proxy servers on different devices. Whether it is to improve Internet speed or to protect personal privacy, mastering the setting method of the proxy server can help users better enjoy the convenience brought by the Internet. I hope this article can help you and make you more comfortable when using the proxy server.