chmod g+w /usr/share/iserv/www/inc/mod_room-reservation/config.inc
chgrp www-data /usr/share/iserv/www/inc/mod_room-reservation/config.inc
chmod g+w /usr/share/iserv/www/inc/mod_room-reservation/config.inc
chgrp www-data /usr/share/iserv/www/inc/mod_room-reservation/config.inc