Create an .htaccess protected directory on DCS. Apache can
be configured to allow or disallow users to create their
own password protected directories. The settings on DCS allow
you to do this. Since you cannot edit the httpd.conf file on
DCS, all the information needs to go into the .htaccess
file. Precise instructions on how to do this can be found
on this page
(Scroll down to "2 Optional: Password protected pages")
(Ignore everything else on that webpage.)
Optional exercises about using php and apache:
Investigate whether php is running by default and what format
php scripts have to have, i.e. whether a php directory is required
or whether the extension .php is required.
If php is disabled, enable it.
Install the following php script and test whether it is working.