Reverse proxy conf

nginx.conf

worker_processes  5;  ## Default: 1
error_log  logs/error.log;
pid        logs/nginx.pid;
worker_rlimit_nofile 8192;

events {
  worker_connections  4096;
}

http {
    types {
    text/html                             html htm shtml;
    text/css                              css;
    text/xml                              xml rss;
    image/gif                             gif;
    image/jpeg                            jpeg jpg;
    application/x-javascript              js;
    text/plain                            txt;
    text/x-component                      htc;
    text/mathml                           mml;
    image/png                             png;
    image/x-icon                          ico;
    image/x-jng                           jng;
    image/vnd.wap.wbmp                    wbmp;
    application/java-archive              jar war ear;
    application/mac-binhex40              hqx;
    application/pdf                       pdf;
    application/x-cocoa                   cco;
    application/x-java-archive-diff       jardiff;
    application/x-java-jnlp-file          jnlp;
    application/x-makeself                run;
    application/x-perl                    pl pm;
    application/x-pilot                   prc pdb;
    application/x-rar-compressed          rar;
    application/x-redhat-package-manager  rpm;
    application/x-sea                     sea;
    application/x-shockwave-flash         swf;
    application/x-stuffit                 sit;
    application/x-tcl                     tcl tk;
    application/x-x509-ca-cert            der pem crt;
    application/x-xpinstall               xpi;
    application/zip                       zip;
    application/octet-stream              deb;
    application/octet-stream              bin exe dll;
    application/octet-stream              dmg;
    application/octet-stream              eot;
    application/octet-stream              iso img;
    application/octet-stream              msi msp msm;
    audio/mpeg                            mp3;
    audio/x-realaudio                     ra;
    video/mpeg                            mpeg mpg;
    video/quicktime                       mov;
    video/x-flv                           flv;
    video/x-msvideo                       avi;
    video/x-ms-wmv                        wmv;
    video/x-ms-asf                        asx asf;
    video/x-mng                           mng;
  }

  proxy_redirect          off;
  proxy_set_header        X-Real-IP       $remote_addr;
  proxy_set_header        X-Forwarded-For $proxy_add_x_forwarded_for;
  client_max_body_size    10m;
  client_body_buffer_size 128k;
  proxy_connect_timeout   90;
  proxy_send_timeout      90;
  proxy_read_timeout      90;
  proxy_buffers           32 4k;
  proxy_pass_header  Set-Cookie;
  proxy_pass_header  P3P;


  default_type application/octet-stream;
  log_format   main '$remote_addr - $remote_user [$time_local]  $status '
    '"$request" $body_bytes_sent "$http_referer" '
    '"$http_user_agent" "$http_x_forwarded_for"';

  access_log   logs/access.log  main;
  sendfile     on;
  tcp_nopush   on;
  server_names_hash_bucket_size 128;

  server {
    listen       80;
    server_name  localhost:3000;
    access_log   logs/domain2.access.log  main;

    location / {
      sub_filter 'https://www.amazon.com' 'http://localhost:3000';
      sub_filter_once off;
      proxy_pass      https://www.amazon.com;
    }
  }

}