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PHP获取代理之前的真实信息
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PHP整合Nginx反向代理的用法

Jun 06, 2016 pm 08:13 PM
nginx php acting reverse Integrate usage Configuration

Nginx 配置虚拟主机域名 blog.lixiphp.com,当浏览者访问主站时,通过代理去访问 server1.blog.lixiphp.com 网站。从而达到一种负载均衡的作用。 以下是Nginx负载均衡,反向代理的配置: server { server_name blog.lixiphp.com; listen 80; location / { pr

Nginx 配置虚拟主机域名 blog.lixiphp.com,当浏览者访问主站时,通过代理去访问 server1.blog.lixiphp.com 网站。从而达到一种负载均衡的作用。


Nginx负载均衡反向代理+PHP实现

以下是Nginx负载均衡,反向代理的配置:

server {
    server_name  blog.lixiphp.com;
    listen 80;
    location / {
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header Via "nginx";
        proxy_pass http://server1.blog.lixiphp.com:80;
    }
}
Copy after login

通过proxy_set_header设置 Header信息,包括Host Name(主机域名),X-Real-IP(真实IP),发送者。

PHP获取代理之前的真实信息

通过打印PHP $_SERVER即可获取到代理之前的信息。

1. 获取Host Name(主机域名)

[HTTP_HOST] => blog.lixiphp.com

如果未经proxy_set_header Host $host; 设置的话,它的值为 server1.blog.lixiphp.com。

2. 获取访问者的真实IP地址

[HTTP_X_REAL_IP] => 58.220.197.34
[HTTP_X_FORWARDED_FOR] => 58.220.197.34

如果未经proxy_set_header X-Real-IP 和 X-Forwarded-For 设置的话,它的值为 server1.blog.lixiphp.com 的IP地址,这样就非常糟糕。

(...)
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Post tags: Host, LNMP, Nginx, 反向代理, 负载均衡

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