setup micro cache Hiawatha web server must adding script

("X-Hiawatha-Cache: 10");

at .php file inside drupal file. In general instruction at kloxo-mr web panel must be adding at index.php
as I know at drupal habit must be in setting.php
so, it's must be at setting.php , am I right ? please confirm, and which one is more secure ?


i get it. it's request hiawatha by default to use index.php