The nginx proxy

proxy

In fact, in life there are many many examples. For example: agent buy train tickets, buy travel tickets, purchasing, derivative, housing black intermediary and so on.

nginx forward proxy

　　Forward proxy object is: kefuduan

　　It works like as a springboard (VPN virtual network), simply say when we can not access a website, but I was able to access a proxy server, proxy server access can access this site, then I'm even on this proxy server, telling it to get to this resource when I want to access the resource, the proxy server, then I returned to this resource.

nginx reverse proxy

　　Reverse proxy objects are: server

　　It works like a proxy server is the same as the original server, as it can protect and hide the original server resources　

Now implements a simple example of reverse proxy

　　Ready to work:

　　　　Three roles: nginx1 192.168.13.79 original server

　　　　　　　　　nginx2 192.168.13.24 cattle reverse proxy server

　　　　　　　　　Customer service application server 192.168.13.56

 Configuring reverse proxy services here I used the load balancing upstream keyword

 1 worker_processes  1;
 2 error_log  logs/error.log;
 3 pid        logs/nginx.pid;
 4 events {
 5     worker_connections  1024;
 6 }
 7 http {
 8     include       mime.types;
 9     default_type  application/octet-stream;
10     log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
11                       '$status $body_bytes_sent "$http_referer" '
12                       '"$http_user_agent" "$http_x_forwarded_for"';
13     access_log  logs/access.log  main;
14     sendfile        on;
15     keepalive_timeout  65;
16     upstream slave_pools{
17     server 192.168.13.79:80 weight=1;
18     }
19     server {
20         listen       80;
21         server_name  localhost;
22         location / {
23         proxy_pass  http://slave_pools;
24             root   html;
25             index  index.html index.htm;
26         }
27         error_page   500 502 503 504  /50x.html;
28         location = /50x.html {
29             root   html;
30         }
31     }
32 }

 

  过程：当客服访问反向代理服务器的时候这个时候反向代理服务器转发到原始的服务器，获取到资源然后就返回给反向代理服务器，反向代理服务器就返回给客服

可以查看日志信息

1 tail -f /opt/nginx112/logs/access.log