For the life of me I can’t figure this one out. After installing phpmyadmin, the apache server it creates has an index_of so if you go to the preview on c9users.io that everyone has my code is visible to everyone. This seems like a very bad default behavior by the way.
Security wise this is of course not good, so I disabled phpmyadmin immediately.
So far I tried removing indexes in /etc/apache2/apache2.conf to no avail.
Any help would be appreciated.