/etc/horde/gollem/backends.d/10-webmail.php is in php-horde-webmail 5.2.17-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 | <?php
$backends['ftp']['disabled'] = true;
$backends['sqlhome']['disabled'] = false;
$backends['sqlhome']['name'] = 'Home';
|