# Yoast's WordPress SEO plugin requires this...
# Ref: http://wordpress.org/extend/plugins/wordpress-seo/faq/
rewrite ^/sitemap_index\.xml$ /index.php?sitemap=1 last;
rewrite ^/([^/]+?)-sitemap([0-9]+)?\.xml$ /index.php?sitemap=$1&sitemap_n=$2 last;