/etc/emboss-explorer/apache2.conf is in emboss-explorer 2.2.0-8.
This file is owned by root:root, with mode 0o777.
It is a symlink to /etc/emboss-explorer/../apache2/conf-available/emboss-explorer.apache2.conf
/etc/emboss-explorer/../apache2/conf-available/emboss-explorer.apache2.conf