yoast_seo.conf

#Yoast SEO Sitemaps
location ~* ^/wp-content/plugins/wordpress-seo(?:-premium)?/css/main-sitemap\.xsl$ {}
location ~ ([^/]*)sitemap(.*).x(m|s)l$ {
    ## this rewrites sitemap.xml to /sitemap_index.xml
    rewrite ^/sitemap.xml$ /sitemap_index.xml permanent;
    ## this makes the XML sitemaps work
    rewrite ^/([a-z]+)?-?sitemap.xsl$ /index.php?yoast-sitemap-xsl=$1 last;
    rewrite ^/sitemap_index.xml$ /index.php?sitemap=1 last;
    rewrite ^/([^/]+?)-sitemap([0-9]+)?.xml$ /index.php?sitemap=$1&sitemap_n=$2 last;
    ## The following lines are optional for the premium extensions
    ## News SEO
    rewrite ^/news-sitemap.xml$ /index.php?sitemap=wpseo_news last;
    ## Local SEO
    rewrite ^/locations.kml$ /index.php?sitemap=wpseo_local_kml last;
    rewrite ^/geo-sitemap.xml$ /index.php?sitemap=wpseo_local last;
    ## Video SEO
    rewrite ^/video-sitemap.xsl$ /index.php?yoast-sitemap-xsl=video last;
}