Редирект в nginx

Необходимо настроить редирект в nginx

RewriteCond %{HTTP_HOST} ^www\.site\.ru$

RewriteCond %{REQUEST_URI} !^/ref

RewriteCond %{REQUEST_URI} !^/kurs

RewriteRule (.*)\.html$ $1 [R]

RewriteCond %{REQUEST_URI} !\.(php|xml|txt|ico|swf)?$

RewriteCond %{HTTP_HOST} ^www\.site\.ru$

RewriteRule ^([^/\?]+)$  /index.php?page=$1&%{QUERY_STRING}

RewriteRule ^([^/\?]+)/$  /index.php?page=$1&%{QUERY_STRING}

RewriteRule ^([^/\?]+)/(\n{1,})/$  /index.php?page=$1&razdel=$2&%{QUERY_STRING}

RewriteRule ^([^/\?]+)/(.*)/$  /index.php?page=$1&razdel=$2&%{QUERY_STRING}

RewriteRule ^([^/\?]+)/(.*)/(.*)/$  /index.php?page=$1&razdel=$2&object=$3&%{QUERY_STRING}

RewriteRule ^([^/\?]+)/(.*)/sub(.*)/$  /index.php?page=$1&razdel=$2&sub=$3&%{QUERY_STRING}

RewriteRule ^([^/\?]+)/(.*)/sub(.*)/(\w+)/(\d+)$  /index.php?page=$1&razdel=$2&sub=$3&$4=$5&%{QUERY_STRING}