CK repository for cKnowledge.org website
See third-party notes:
sudo a2enmod rewrite
sudo systemctl restart apache2
sudo nano /etc/apache2/sites-available/000-default.conf
<VirtualHost *:80>
<Directory /var/www/html>
Options Indexes FollowSymLinks MultiViews
AllowOverride All
Require all granted
</Directory>
. . .
</VirtualHost>