I just recently downloaded and fired up the Turnkey Revision Control appliance and love it!  However, I need to provide security such that ONLY authorized users can see the repositories, whether on the local network or coming from the internet.  It seems that this should be a simple matter to resolve --- but I am missing it completely.  I have had experience with UNIX systems, and have "played with" some Linux, but this is my first work with Apache.

I want to host my repositories on the appliance, and get access using TortoiseSVN from both within and remotely over the internet.  Can someone please point me in the right direction?  I have read about modifications to httpd.conf, tried some without desired results and spent WAY too much time trying to figure it out.

Thanks in advance.