To use CAS (our Central Authentication Service) to restrict access to a folder on a departmental website, create
a .htaccess file containing, e.g.:
AuthType CAS
AuthName "Network Services"
Require user abc123
or
AuthType CAS
AuthName "Network Services"
AuthGroupFile /department/mygroups
Require group mygroup
Once you've done that, only the named users or groups
will be allowed to access that folder.