Nginx set anonymous HTTP forward proxy

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These two days in research Nginx forward agent, want to build an HTTP proxy server through Nginx, Web site found this article (http://www.cnblogs.com/inteliot/archive/2013/01/11/2855907.html):

Configure the Nginx Http proxy proxy Server, like the [Squid] function, for The forward Proxy Http Web site.

One, Nginx forward proxy configuration file:

server {    resolver 8.8.8.8;    Resolver_timeout 5s;     Listen 0.0.0.0:8080;     Access_log  /home/reistlin/logs/proxy.access.log;    Error_log   /home/reistlin/logs/proxy.error.log;     Location/{        Proxy_pass $scheme://$host $request_uri;        Proxy_set_header Host $http _host;         Proxy_buffers 4k;        Proxy_max_temp_file_size 0;         Proxy_connect_timeout;         Proxy_cache_valid 302 10m;        Proxy_cache_valid 301 1h;        Proxy_cache_valid any 1m;

#allow 127.0.0.1;            #deny all;

    }}

Two, Nginx forward proxy configuration instructions:

1, configure DNS resolution IP address, such as Google public DNS, and timeout time (5 seconds).

Resolver 8.8.8.8;resolver_timeout 5s;

2, the configuration of the forward proxy parameters, are composed of Nginx variables. Where the Proxy_set_header section is configured to resolve if the URL is in "." (dot) after Nginx 503 error.

Proxy_pass $scheme://$host $request_uri;proxy_set_header host $http _host;

3, configure cache size, turn off disk cache read and write reduced I/O, and proxy connection time-out.

Proxy_buffers 4k;proxy_max_temp_file_size 0;proxy_connect_timeout 30;

4, configure the proxy server Http state cache time.

Proxy_cache_valid 302 10m;proxy_cache_valid 301 1h;proxy_cache_valid any 1m;

third, Proxy Https Web site is not supported

Because Nginx does not support CONNECT, Unable to forward proxy Https website (online Banking, Gmail).
If you visit an HTTPS website, such as: Https://www.google.com,Nginx Access.log log as follows:

"CONNECT www.google.com:443 http/1.1" 400

The author is very good, however, I encountered a problem in the configuration process, that is, through the configuration of the proxy access page is reported 404 (my Nginx version: 1.2), then I found the need to change the Proxy_pass:

Proxy_pass $scheme://$host $request_uri;

Change to:

Proxy_pass $scheme://$http _host$request_uri;

This is OK, plus I added the IP restrictions, you need to be able to open the above comments on the line:

Allow 127.0.0.1;deny all;

It is verified that the above code is available. Server-side get the code below, but do not know how to bring a proxy-connection, this estimate can only be ordinary anonymous, not considered high-level anonymity:

head info:{content-type=application/x-www-form-urlencoded; charset=utf-8, C content-length=42, user-agent=mozilla/5.0 (Windows NT 6.1;                                                WOW64) applewebkit/537.36 (khtml, like Gecko) chrome/40.0.2214.111 safari/537.36, Proxy-c/pre> 
 
 The above describes the Nginx set anonymous HTTP forward proxy, including the aspects of the content, I hope the PHP tutorial interested in a friend helpful. 
 
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