It is in the .htaccess
:
AcceptPathInfo on RewriteEngine on RewriteBase / RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{SERVER_NAME} ^[mirros.hse.ru](http://mirros.hse.ru)$ [NC] RewriteRule ^(.*)$ index.php/mirros/$1 [L]
It is the only RewriteRule we managed to make work for our instance of OJS with multiple journals so far