index.php и проблема в админке, настройка nginx

upstream backend-site1 {server unix:/var/run/php5-site1.sock;}

server {
       listen                           80;
       server_name                 sitename;
       rewrite   ^  http://www.sitename$request_uri?;
       }

server {
        listen                          80;
        charset                        utf-8;
        server_name                www.sitename ;
        root                            /var/www/site1/www;
        access_log                 /var/log/nginx/site1-access.log;
        error_log                     /var/log/nginx/site1-error.log;
        index                          index.php index.html;
        rewrite_log                   on;


        location ~* ^/core/ {
                deny                    all;
        }

        location / {
                try_files               $uri $uri/ @rewrite;
        }

        location /index.html {
                rewrite                 / / permanent;
        }

        location ~ ^/(.*?)/index\.html$ {
                rewrite                 ^/(.*?)/ // permanent;
        }

        location @rewrite {
                rewrite                 ^/(.*)$ /index.php?q=$1;
        }

#-- Редирект
        location = /index.php {
                 if ($request_uri = /index.php) {
	                 rewrite ^ http://www.sitename    permanent;     #301 redirect
        }
                include         fastcgi_params;
                fastcgi_pass    backend-site1;
                fastcgi_index   index.php;
                fastcgi_param   SCRIPT_FILENAME  $document_root$fastcgi_script_name;
        }
# --/Редирект

        location ~ \.php$ {
                include         fastcgi_params;
                fastcgi_param   SCRIPT_FILENAME $document_root$fastcgi_script_name;
                fastcgi_pass    backend-site1;
        }

        location ~* ^.+\.(jpg|jpeg|gif|css|png|js|ico|bmp)$ {
           access_log           off;
           expires                      10d;
           break;
        }
        location ~ /\.ht {
                deny                    all;
        }
}