Nginx服务器作反向代理时的缓存配置要点解析

http {
[...]
[...]
 
proxy_cache_path /data/nginx/cache/one levels=1:2  keys_zone=one:10m max_size=10g;
proxy_cache_key "$host$request_uri";
 
server {
  server_name www.jb51.net jb51.net;
  root /home/www.jb51.net/web;
  index index.php index.html index.htm;
  location / {
    proxy_pass http://127.0.0.1:8080;
    proxy_set_header Host "www.jb51.net";
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    #开启反向代理缓存，并使用zone name为one的缓存。
    proxy_cache one;
    #设置状态码为200 302过期时间为10分钟
    proxy_cache_valid 200 302 10m;
    #设置状态码404的过期时间为1分钟
    proxy_cache_valid 404   1m;
  }
  #清除缓存
  location ~ /purge(/.*) {
    #允许的IP
    allow 127.0.0.1;
    deny all;
    proxy_cache_purge one $host$1$is_args$args;
  }
}
 
}

cd /tmp
wget http://labs.frickle.com/files/ngx_cache_purge-2.1.tar.gz
tar xzf ngx_cache_purge-2.1.tar.gz
cd /tmp
wget http://nginx.org/download/nginx-1.4.2.tar.gz
tar xzf nginx-1.4.2.tar.gz
cd nginx-1.4.2
./configure --prefix=/usr/local/nginx --add-module=/tmp/ngx_cache_purge-2.1
make && make install

proxy_set_header Range $http_range;
proxy_set_header If-Range $http_if_range;
proxy_no_cache $http_range $http_if_range;