root@chs-bctest01-v / # cat /etc/nginx/nginx.conf
user www-data;
worker_processes 8;
worker_rlimit_nofile 1024;
pid        /var/run/nginx.pid;
error_log  /var/log/nginx/error.log;
events {
  worker_connections 1024;
}

http {
  include       /etc/nginx/mime.types;
  default_type  application/octet-stream;
  access_log  /var/log/nginx/access.log;
  sendfile    on;
  server_tokens Off;
  types_hash_max_size 1024;
  types_hash_bucket_size 512;
  server_names_hash_bucket_size 64;
  server_names_hash_max_size 512;

  keepalive_timeout  65;
  tcp_nodelay        on;

  gzip         on;
  gzip_disable "MSIE [1-6]\.(?!.*SV1)";
  gzip_types text/plain
           text/css
           application/x-javascript
           text/xml
           application/xml
           application/xml+rss
           application/javascript
           text/x-js
           text/javascript;
  gzip_vary on;
  gzip_comp_level 6;

#  client_body_temp_path   /var/nginx/client_body_temp;
  client_body_temp_path   /tmp/cache/imgcache/client_body_temp;
  client_max_body_size    10m;
  client_body_buffer_size 128k;
  proxy_redirect          off;
#  proxy_temp_path         /var/nginx/proxy_temp;
  proxy_temp_path         /tmp/cache/imgcache/proxy_temp;
  proxy_connect_timeout   90;
  proxy_send_timeout      90;
  proxy_read_timeout      90;
  proxy_buffers           32 4k;
  proxy_buffer_size       8k;
  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_headers_hash_bucket_size 64;
  proxy_cache_path        /tmp/cache/imgcache levels=1:2 keys_zone=imgcache:100m max_size=1G inactive=600m;
  include /etc/nginx/conf.d/*.conf;
  include /etc/nginx/sites-enabled/*;
}

root@chs-bctest01-v / # cat   /etc/nginx/sites-enabled/default.conf
server {
  listen *:80;
  server_name           default;
  index  index.html index.htm index.php;
  access_log            /var/log/nginx/default.access.log combined;
  error_log             /var/log/nginx/default.error.log;

  location ~* \.(swf|jpg|jpeg|gif|png|ico|css|pdf|bmp|js)$ {
    proxy_pass            http://loadbalance;
    proxy_read_timeout    90;
    proxy_connect_timeout 90;
    proxy_redirect        off;

    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_cache           imgcache;
    proxy_cache_valid     200 301 302 60m;
    add_header            Cache-Control "public";
    add_header Pragma public;
  }

  location ~* \.(swf|jpg|jpeg|gif|png|ico|css|pdf|bmp|js)$ {
    expires 120m;
    add_header Pragma public;
    add_header Cache-Control "public, must-revalidate, proxy-revalidate";
  }

  # Don't cache these pages.
  location ~* ^/(wp-admin|wp-login.php) {
    proxy_pass http://loadbalance;
  }

  location / {
    proxy_pass            http://loadbalance;
    proxy_read_timeout    90;
    proxy_connect_timeout 90;
    proxy_redirect        off;
  }

  location /nginx_status {
    allow 127.0.0.1;
    stub_status on;
  }
}