I'm sorry for the cryptic message. I had tossed the install from before, so ended up succeeding with these steps as I wanted to use SSL;
`Unpack;
$ sudo tar -xf dokuwiki*.tar.gz --directory /var/www/
$ sudo chown -R www-data:www-data /var/www/dokuwiki
$ sudo vi /etc/apache2/sites-available/default-ssl.conf
Change lines;
DocumentRoot /var/www/dokuwiki
ServerName <servername>
SSLCertificateFile /etc/ssl/certs/<certificate.crt>
SSLCertificateKeyFile /etc/ssl/private/<certificate.key>
Enable SSL
sudo a2enmod ssl
##Enable SSL enabled site
sudo a2ensite default-ssl
Restart
sudo service apache2 restart
sudo systemctl reload apache2`