Guys, do you have such confusion: in the business of web crawler and data collection, facing the limitations of IP blocking and anti-crawler, we need a stable and efficient solution. That's right, commercial grade 4G proxy server is your savior! In this article, we will bring you a detailed guide to build a commercial-grade 4G proxy server, so that you can easily take a solid step towards anti-crawler!

I. Preparation of materials

First of all, prepare the following "materials": a router supporting 4G network, a 4G SIM card, a network cable, a computer.

Once the materials are ready, let's start building!

II. Network environment configuration

1. Insert the 4G SIM card into the router and connect the router to the computer via the network cable.

2. Turn on your computer and enter the router management interface. Normally, we can enter the default management address in the browser, for example, 192.168.1.1.

3. In the router management interface, we need to modify some network configurations. Enter the "Network Settings" option, set the network type to 4G, and fill in the corresponding APN, username and password. This information can usually be found in the manual of the SIM card. After finishing the settings, save and reboot the router.

Third, the proxy server to build

Now, let's build the core commercial grade 4G proxy server! Please follow along with me as we move forward!

1. Open a terminal or command prompt on your computer and enter the following command to install Privoxy:

sudo apt-get install privoxy

2. After the installation is complete, edit the Privoxy configuration file. Enter the following command:

sudo nano /etc/privoxy/config

3. In the configuration file, find the line "listen-address" and change it to:

listen-address 127.0.0.1:8118

4. Next, find the line "forward-socks5t" and change it to:

forward-socks5t / 127.0.0.1:1080 .

5. Save and exit the profile.

IV. Proxy server startup

1. Enter the following command to start the Privoxy proxy server:

sudo /etc/init.d/privoxy start

2. After successful startup, we need to configure a proxy server for the 4G network. Open your computer's network settings, locate the 4G network connection, and click the "Advanced" option.

3. In Advanced Options, find Proxy Settings and select "Manual" mode. Enter the proxy server address as "127.0.0.1" and port as "8118".

4. Save the settings and close the Network Settings window.

V. Testing and utilization

Now, let's test if the proxy server is working properly.

1. Type an arbitrary URL into your browser, for example, www.baidu.com.

2. If the page can be loaded normally, and in the terminal or command prompt can see the proxy server access log, then congratulations, the proxy server has been successfully set up!

VI. Additional optimization

1. You can enable the system agent by entering the following command in a terminal or command prompt:

export http_proxy=http://127.0.0.1:8118
export https_proxy=http://127.0.0.1:8118

2. In this way, the command-line tools you use in the terminal will also be able to access the network through the proxy server.

VII. Summary

With the guide in this article, we have successfully built a commercial-grade 4G proxy server with relevant configurations and tests. Now, you can enjoy using this proxy server to solve IP blocking and anti-crawler problems in web crawler, data collection and other businesses!

Remember, building a commercial grade 4G proxy server is not an easy task and requires experience and skill. I hope this article has helped you and wish you much success in the online world!