WordPress multisite in Nginx server

WordPress multisite in Nginx server

We need to configure the configuration file as bellow 

server {
  ##DM - uncomment following line for domain mapping 
  #listen 80 default_server;
  server_name yourdomain.com;
  ##DM - uncomment following line for domain mapping
  #server_name_in_redirect off; 
 
  # FORGE SSL (DO NOT REMOVE!)
  # ssl on;
  # ssl_certificate;
  # ssl_certificate_key;
 
  access_log /var/log/nginx/yourdomain.com.access.log;
  error_log /var/log/nginx/yourdomain.com.error.log;
  root /home/forge/yourdomain.com;
  index index.php;
 
  if (!-e $request_filename) {
    rewrite /wp-admin$ $scheme://$host$uri/ permanent; 
    rewrite ^(/[^/]+)?(/wp-.*) $2 last; 
    rewrite ^(/[^/]+)?(/.*\.php) $2 last;
  }
  set $cache_uri $request_uri;
 
 
  # POST requests and urls with a query string should always go to PHP
  if ($request_method = POST) {
    set $cache_uri 'NULL';
  }
  if ($query_string != "") {
    set $cache_uri 'NULL';
  }
 
 
  # Don't cache uris containing the following segments
  if ($request_uri ~* "(/wp-admin/|/xmlrpc.php|/wp-(app|cron|login|register|mail).php|wp-.*.php|/feed/|index.php|wp-comments-popup.php|wp-links-opml.php|wp-locations.php|sitemap(_index)?.xml|[a-z0-9_-]+-sitemap([0-9]+)?.xml)") {
    set $cache_uri 'NULL';
  }
 
 
  # Don't use the cache for logged in users or recent commenters
  if ($http_cookie ~* "comment_author|wordpress_[a-f0-9]+|wp-postpass|wordpress_logged_in") {
    set $cache_uri 'NULL';
  }
 
 
  # Use cached or actual file if they exists, otherwise pass request to WordPress 
  location / {
    try_files /wp-content/cache/page_enhanced/${host}${cache_uri}_index.html $uri $uri/ /index.php?$args ;
  }
  location ~ \.php$ {
    try_files $uri /index.php;
    include fastcgi_params;
    fastcgi_pass unix:/var/run/php5-fpm.sock;
  }
  location ~* ^.+\.(ogg|ogv|svg|svgz|eot|otf|woff|mp4|ttf|rss|atom|jpg|jpeg|gif|png|ico|zip|tgz|gz|rar|bz2|doc|xls|exe|ppt|tar|mid|midi|wav|bmp|rtf)$ {
    access_log off; log_not_found off; expires max;
  }
  location = /robots.txt { access_log off; log_not_found off; }
  location ~ /\. { deny all; access_log off; log_not_found off; }
}W