#user  nobody;
worker_processes  1;

#error_log  logs/error.log;
#error_log  logs/error.log  notice;
#error_log  logs/error.log  info;

#pid        logs/nginx.pid;


events {
    worker_connections  1024;
}


http {

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

    #log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
    #                  '$status $body_bytes_sent "$http_referer" '
    #                  '"$http_user_agent" "$http_x_forwarded_for"';

    #access_log  logs/access.log  main;

    sendfile        on;
    #tcp_nopush     on;

    #keepalive_timeout  0;
    keepalive_timeout  65;

    #gzip  on;
    
    #（启用 gzip 压缩功能）
    gzip_proxied any;  
    #（nginx 做前端代理时启用该选项，表示无论后端服务器的headers头返回什么信息，都无条件启用压缩）
        gzip_min_length  1024; 
    #（最小压缩的页面，如果页面过于小，可能会越压越大，这里规定大于1K的页面才启用压缩）
        gzip_buffers     4 8k; 
    #（设置系统获取几个单位的缓存用于存储gzip的压缩结果数据流）
        gzip_comp_level 3; 
    #（压缩级别，1压缩比最小处理速度最快，9压缩比最大但处理最慢，同时也最消耗CPU,一般设置为3就可以了）
        gzip_types     text/plain application/x-javascript text/css text/javascript application/x-httpd-php image/jpeg image/gif image/png;
    #（什么类型的页面或文档启用压缩）
    #  gzip_types text/plain application/x-javascript text/css text/javascript application/x-httpd-php image/jpeg image/gif image/png;
    #图片
    
    

        #错误页面
    fastcgi_intercept_errors on; 
    
    #nginx还有一种缓存proxy_cache，它在设计上比proxy_store 更先进，采用内存+硬盘方式缓存，可以设置缓存大小和缓存过期。
     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;
     proxy_temp_path C:/nginx-1.7.7/temp/proxy_temp;
     proxy_cache_path  C:/nginx-1.7.7/temp/ levels=1:2 keys_zone=imgcache:100m inactive=1d max_size=10g;
    
    
    #监听的节点
    upstream  mysite{
            server   127.0.0.1:81  weight=11;
         server   192.168.12.1:83  weight=10;
        # ip_hash; 
        # server   127.0.0.1:81  weight=11;
        # server   192.168.12.1:83  weight=10;
         }
    #listen监听的端口，server_name服务器名称，监听那个服务器那个端口
    server {
        listen       80;
        server_name  www.24yb.com;
 

        #charset koi8-r;

        #access_log  logs/host.access.log  main;    
        
        error_page  404              /404.aspx;
         
        location / {
             proxy_pass http://mysite;
              proxy_redirect default;
             proxy_set_header   Host             $host;   
             proxy_set_header   X-Real-IP        $remote_addr;   
             proxy_set_header   X-Forwarded-For  $proxy_add_x_forwarded_for;  
        }        
        
        
        #静态文件缓存方式一(需定期清理)
        #location ~ .*\.(gif|jpg|jpeg|png|bmp|swf|js|html|htm|css)$ {
        #   log_not_found off;            
        #   expires 7d ;
        #   root C:/nginx-1.7.7/file;
        #   access_log off;
        #   proxy_store on;
        #   proxy_store_access user:rw group:rw all:rw;
        #    if ( !-e $request_filename) {
        #        proxy_pass http://mysite;
        #   }
        #}    
        
        #静态文件缓存方式二
            #将会使用一块最大100M的共享内存，用于硬盘上的文件索引，包括文件名和请求次数，每个文件在1天内若不活跃（无请求）则从硬盘上淘汰，硬盘缓存最大10G，满了则根据LRU算法自动清除缓存。
         location ~* ^.+\.(js|ico|gif|jpg|jpeg|png|html|htm)$ {
            log_not_found off;
            access_log off;
            expires 7d;
            proxy_pass http://mysite;
            proxy_cache imgcache;
            proxy_cache_valid 200 302 1d;
            proxy_cache_valid 404 10m;
            proxy_cache_valid any 1h;
            proxy_cache_use_stale error timeout invalid_header updating http_500 http_502 http_503 http_504;
        }
        
      }
    
    

    server {
        listen       80;
        server_name  localhost;

        #charset koi8-r;

        #access_log  logs/host.access.log  main;

        location / {
            root   html;
            index  index.html index.htm;
        }

        #error_page  404              /404.html;

        # redirect server error pages to the static page /50x.html
        #
        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   html;
        }

        # proxy the PHP scripts to Apache listening on 127.0.0.1:80
        #
        #location ~ \.php$ {
        #    proxy_pass   http://127.0.0.1;
        #}

        # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
        #
        #location ~ \.php$ {
        #    root           html;
        #    fastcgi_pass   127.0.0.1:9000;
        #    fastcgi_index  index.php;
        #    fastcgi_param  SCRIPT_FILENAME  /scripts$fastcgi_script_name;
        #    include        fastcgi_params;
        #}

        # deny access to .htaccess files, if Apache's document root
        # concurs with nginx's one
        #
        #location ~ /\.ht {
        #    deny  all;
        #}
    }


    # another virtual host using mix of IP-, name-, and port-based configuration
    #
    #server {
    #    listen       8000;
    #    listen       somename:8080;
    #    server_name  somename  alias  another.alias;

    #    location / {
    #        root   html;
    #        index  index.html index.htm;
    #    }
    #}


    # HTTPS server
    #
    #server {
    #    listen       443 ssl;
    #    server_name  localhost;

    #    ssl_certificate      cert.pem;
    #    ssl_certificate_key  cert.key;

    #    ssl_session_cache    shared:SSL:1m;
    #    ssl_session_timeout  5m;

    #    ssl_ciphers  HIGH:!aNULL:!MD5;
    #    ssl_prefer_server_ciphers  on;

    #    location / {
    #        root   html;
    #        index  index.html index.htm;
    #    }
    #}

}