【转部分】nginx图片缓存服务器配置实战

#需要建立www用户和www用户组
user  www www;
worker_processes  8;

error_log  /usr/local/nginx-0.8.32/logs/error.log crit;

pid  /usr/local/nginx-0.8.32/nginx.pid;

events {
    use epoll;
    worker_connections  65535;
}

http {
    include       mime.types;
    default_type  application/octet-stream;

    charset  utf-8;
    server_names_hash_bucket_size 128;
    client_header_buffer_size 32k;
    large_client_header_buffers 4 32k;
    client_max_body_size 300m;
    sendfile on;
    tcp_nopush     on;

    keepalive_timeout 60;
    tcp_nodelay on;
    client_body_buffer_size  512k;
    proxy_connect_timeout    5;
    proxy_read_timeout       60;
    proxy_send_timeout       5;
    proxy_buffer_size        16k;
    proxy_buffers            4 64k;
    proxy_busy_buffers_size 128k;
    proxy_temp_file_write_size 128k;

    gzip on;
    gzip_min_length  1k;
    gzip_buffers 4 16k;
    gzip_http_version 1.1;
    gzip_comp_level 2;
    gzip_types text/plain application/x-javascript text/css application/xml;
    gzip_vary on;

    #注：images_temp和images_cache指定的路径必须在同一分区
    proxy_temp_path   ：/usr/local/nginx-0.8.32/html/SD/images_temp;
    #设置Web缓存区名称为cache_one，内存缓存空间大小为200MB，1天没有被访问的内容自动清除，硬盘缓存空间大小为30GB。
    Proxy_cache_path  ：/usr/local/nginx-0.8.32/html/SD/images_cache  levels=1:2   keys_zone=cache_one:200m inactive=1d max_size=30g;

    server {
        listen       80;
        server_name  192.168.0.146;
        location / {
                proxy_cache cache_one;
                #对不同的HTTP状态码设置不同的缓存时间
                proxy_cache_valid  200 304 12h;
                #以域名、URI、参数组合成Web缓存的Key值，Nginx根据Key值哈希，存储缓存内容到二级缓存目录内
                proxy_cache_key $host$uri$is_args$args;
                proxy_set_header Host  $host;
                proxy_set_header X-Forwarded-For  $remote_addr;
                proxy_pass http://192.168.0.146:8080;
            log_format cache '***$time_local '  '***$upstream_cache_status '  '***Cache-Control: $upstream_http_cache_control ' '***Expires: $upstream_http_expires ' '***"$request" ($status) ' '***"$http_user_agent" ';
            access_log  /usr/local/nginx-0.8.32/logs/cache.log cache;
                expires      1d;
                }

            #用于清除缓存，假设一个URL为http://192.168.8.42/test.txt，通过访问http://192.168.8.42/purge/test.txt就可以清除该URL的缓存。
    location ~ /purge(/.*) {
                #设置只允许指定的IP或IP段才可以清除URL缓存。
            allow       127.0.0.1;
            allow       192.168.0.0/16;
            deny    all;
            proxy_cache_purge    cache_one   $host$1$is_args$args;
    }

            #扩展名以.php、.jsp、.cgi结尾的动态应用程序不缓存。
    location ~ .*\.(php|jsp|cgi)?$ {
                proxy_set_header Host  $host;
                proxy_set_header X-Forwarded-For  $remote_addr;
                proxy_pass http://192.168.0.146:8080;
        }
        access_log  off;
    }

    server{
    listen 8080;
            server_name 192.168.33.243;

    location / {
        root /usr/local/webapp;
    }
        access_log off;
     }
}

http://hermit-macx.iteye.com/blog/1697375