nginx proxy_connect,美国vps对比,lightnode vps,超兽vps群,云主机云服务器吗

🗣 Wd提问: nginx proxy_connect

🤖 Ai回答:
The `proxy_connect` directive is not a standard NGINX directive、It's actually part of a third-party module called `ngx_http_proxy_connect_module`, which enables NGINX to handle HTTP CONNECT requests (typically used for HTTPS proxying).

What is HTTP CONNECT?

HTTP CONNECT is a method used by clients to establish a tunnel through an HTTP proxy to a remote server, commonly used for:
HTTPS traffic (port 443)
WebSocket connections
Other TCP-based protocols

Standard NGINX Limitation

By default, NGINX only supports HTTP/HTTPS reverse proxying and cannot handle raw TCP connections or HTTP CONNECT requests、This is where the third-party module comes in.

ngx_http_proxy_connect_module

This module adds support for the HTTP CONNECT method, allowing NGINX to function as an HTTP forward proxy.

Installation

Since it's a third-party module, you need to compile NGINX with it:

bash
Download NGINX source
wget http://nginx.org/download/nginx-1.24.0.tar.gz
tar -xzf nginx-1.24.0.tar.gz

Download the module
git clone https://github.com/chobits/ngx_http_proxy_connect_module.git

Apply patch (required for newer NGINX versions)
patch -p1 < ngx_http_proxy_connect_module/patch/proxy_connect_rewrite_102101.patch

Configure and compile
./configure add-module=./ngx_http_proxy_connect_module
make
sudo make install

Basic Configuration

nginx
server {
listen 8080; Proxy port

Enable CONNECT method for specific ports
proxy_connect;
proxy_connect_allow 443 563; Allow HTTPS and NNTPS
proxy_connect_allow all; Or allow all ports
proxy_connect_connect_timeout 10s;
proxy_connect_read_timeout 10s;
proxy_connect_send_timeout 10s;

Regular proxy settings for non-CONNECT requests
location / {
proxy_pass http://$http_host;
proxy_set_header Host $http_host;
}
}

Key Directives

`proxy_connect`: Enables CONNECT method handling
`proxy_connect_allow`: Specifies which ports are allowed for CONNECT requests
`proxy_connect_connect_timeout`: Timeout for establishing backend connection
`proxy_connect_read_timeout`: Timeout for reading from backend
`proxy_connect_send_timeout`: Timeout for sending to backend

Alternative Solutions

If you can't use the third-party module, consider these alternatives:

1、Stream Module (for TCP proxying)
nginx
stream {
server {
listen 443;
proxy_pass backend_server:443;
}
}

2、Use a dedicated proxy server
Squid
HAProxy
Privoxy

3、Application-level handling
Handle the tunneling logic in your application instead of NGINX.

Important Notes

The `proxy_connect` module makes NGINX act as a forward proxy, not just a reverse proxy
Security considerations: Be careful about which ports you allow (`proxy_connect_allow`)
This module is not officially supported by NGINX Inc.
For most reverse proxy use cases, standard NGINX directives like `proxy_pass` are sufficient

Example: Complete Forward Proxy Setup

nginx
server {
listen 3128; Common proxy port

Handle CONNECT requests
proxy_connect;
proxy_connect_allow 443 563;
proxy_connect_connect_timeout 10s;
proxy_connect_send_timeout 10s;
proxy_connect_read_timeout 10s;

Handle regular HTTP requests
location / {
proxy_pass $scheme://$http_host$request_uri;
proxy_set_header Host $http_host;
proxy_set_header User-Agent $http_user_agent;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
}
}

Remember that implementing a forward proxy has significant security implications and should be done carefully with proper access controls.

Ai作答

📣 商家广告：