map $uri $blogname{
 ~^(?P<blogpath>/[^/]+/)files/(.*) $blogpath ;
}
 
map $blogname $blogid{
 default -999;
 
 #Ref: http://wordpress.org/extend/plugins/nginx-helper/
 #include /var/www/wordpress/wp-content/plugins/nginx-helper/map.conf ;
}
 
server {
 server_name jb51.net ;
 
 root /var/www/jb51.net/htdocs;
 index index.php;
 
 #多站点配置
 location ~ ^(/[^/]+/)?files/(.+) {
 try_files /wp-content/blogs.dir/$blogid/files/$2 /wp-includes/ms-files.php?file=$2 ;
 access_log off; log_not_found off; expires max;
 }
 
 #avoid php readfile()
 location ^~ /blogs.dir {
 internal;
 alias /var/www/jb51.net/htdocs/wp-content/blogs.dir ;
 access_log off; log_not_found off; expires max;
 }
 
 if (!-e $request_filename) {
 rewrite /wp-admin$ $scheme://$host$uri/ permanent; 
 rewrite ^(/[^/]+)?(/wp-.*) $2 last; 
 rewrite ^(/[^/]+)?(/.*\.php) $2 last; 
 }
 
 location / {
 try_files $uri $uri/ /index.php?$args ;
 }
 
 location ~ \.php$ {
 try_files $uri =404;
 include fastcgi_params;
 fastcgi_pass php;
 }
 
 #此处可以继续添加伪静态规则
}

map $http_host $blogid {
 default  -999;
 
 #Ref: http://wordpress.org/extend/plugins/nginx-helper/
 #include /var/www/wordpress/wp-content/plugins/nginx-helper/map.conf ;
 
}
 
server {
 server_name jb51.net *.jb51.net ;
 
 root /var/www/jb51.net/htdocs;
 index index.php;
 
 location / {
 try_files $uri $uri/ /index.php?$args ;
 }
 
 location ~ \.php$ {
 try_files $uri =404;
 include fastcgi_params;
 fastcgi_pass php;
 }
 
 #WPMU Files
  location ~ ^/files/(.*)$ {
    try_files /wp-content/blogs.dir/$blogid/$uri /wp-includes/ms-files.php?file=$1 ;
    access_log off; log_not_found off;  expires max;
  }
 
 #WPMU x-sendfile to avoid php readfile()
 location ^~ /blogs.dir {
 internal;
 alias /var/www/jb51.net/htdocs/wp-content/blogs.dir;
 access_log off; log_not_found off; expires max;
 }
 
 #此处可以继续添加伪静态规则
}