root /var/www/files; location / { expires 30d; access_log off; error_page 404 = @fetch; error_page 403 = @fetch; } location @fetch { internal; proxy_pass http://10.0.0.5; proxy_store on; proxy_store_access user:rw group:rw all:r; proxy_temp_path /tmp/data; proxy_set_header Host md5.site.ru; proxy_set_header If-Modified-Since ""; }