title: HAProxy and NGINX problems with private IP
body: <p>I have HAProxy setup, and I have no problem pointing it to the public IP of my App server, but I can't get it to point to the Private IP. I get a "503 Service Unavailable No server is available to handle this request." error</p>
  
  <p>These are my settings:</p>
  
  <p>haproxy.cfg</p>
  
  <pre><code>global
          log 127.0.0.1   local0
          log 127.0.0.1   local1 notice
          maxconn 4096
          user haproxy
          group haproxy
  
  defaults
          log     global
          mode    http
          option  httplog
          option  dontlognull
          retries 3
          option redispatch
          maxconn 2000
          contimeout      5000
          clitimeout      50000
          srvtimeout      50000
  
  listen webfarm 173.255.222.100:80
         mode http
         stats enable
         stats auth deploy:d3pl0y
         balance roundrobin
         cookie JSESSIONID prefix
         option httpclose
         option forwardfor
         server App1 192.168.133.136:80 cookie App1 check
  </code></pre>
  
  <p>nginx.conf (for app server)</p>
  
  <pre><code>#user  nobody;
  worker_processes  4;
  
  #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 {
      passenger_root /opt/ruby/lib/ruby/gems/1.8/gems/passenger-3.0.2;
      passenger_ruby /opt/ruby/bin/ruby;
  
      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;
  
  server {
       listen 192.168.133.136:80;
       port_in_redirect off;
       server_name localhost;
       root /var/www/current/public;
       passenger_enabled on;
       rack_env production;
       if (-f $document_root/system/maintenance.html){
               rewrite  ^(.*)$  /system/maintenance.html break;
       }
  
  
       if ($host ~* www\.(.*)) {
               set $host_without_www $1;
               rewrite ^(.*)$ http://$host_without_www$1 permanent;
       }
          }
  
      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;
          }
  
  }
  </code></pre>