HTTP proxy server construction: self-built transit service tutorial

I. Why the need for self-built agency transit services

Many users have encountered proxy IPs when usingUnstable connectionmaybeHigh speed fluctuationsThe problem is that you need to call multiple proxy IPs at the same time. Self-built transit server is equivalent to build a "traffic scheduling center", can achieve three core functions:

II. Core preparations before erection

Recommended1-core 2G configuration cloud server(Hong Kong/Singapore node is the best), system choice Ubuntu 20.04. key tool preparation:

• Installing Nginx as a reverse proxy tool
• Preparing for ipipgo offersDynamic Residential IP Pool API Interface
• Configure the script file for automatic IP updates

Third, step-by-step construction of practical teaching

Step 1: Deploy the base environment
Executed after connecting to the server via SSH:
sudo apt update && sudo apt install nginx -y

Step 2: Configure proxy rules
Add it in the Nginx configuration file:

location / {
    proxy_pass http://$target_ip:$target_port; proxy_set_header Host $host; proxy_set_header
    proxy_set_header Host $host.
    proxy_http_version 1.1; }
}

included among these$target_ipGet the latest IP in real time by calling ipipgo's API.

Step 3: Setting up the automatic switching mechanism
Create a timed task script:

! /bin/bash
NEW_IP=$(curl api.ipipgo.com/getproxy)
sed -i "s/proxy_pass./proxy_pass http://${NEW_IP}:port number;/" /etc/nginx/conf.d/proxy.conf
nginx -s reload

IV. Key configuration optimization techniques

1. Intelligent Routing Settings
Configure different IP allocation policies according to business requirements:

2. Exception handling mechanisms
Add it in the Nginx configuration:

proxy_next_upstream error timeout invalid_header.
proxy_connect_timeout 3s.

Automatically switch to the next set of proxies when IP failure is detected

V. Solutions to common problems

Q: How does the transit server ensure stability?
A: It is recommended to work with ipipgo'sIntelligent IP Health Detection FunctionThe IPs returned by its API interface are pre-verified, with an average availability rate of >99.5%.

Q: How to deal with IP blocking?
A: Add IP validity checking to the timing script, when the threshold is triggered automatically call ipipgo'sReal-time interface replacementGetting a new IP

Q: How to manage a large number of proxy IPs?
A: Use the ipipgo providedIP packet management functionThe IP resources of different regions and operator types are categorized and managed through a tagging system.

VI. Why ipipgo

In a real-world comparison, ipipgo'sResidential IP PurityOutstanding performance:

• Support socks5/http(s)/socket full protocol access
• Unique IP quality scoring system
• Millisecond IP switching response
• Provide complete API documentation and technical support

The transit service built by the solution in this paper, together with ipipgo's high-quality proxy resources, can build a stable business operating environment. It is recommended to adjust the server configuration according to the actual business scale and regularly check the log files to optimize the proxy strategy.