I have moodle installed in one of my buildings and need to access it via the private IP address when I'm in that building. However all my other buildings will access it using the url. My url is what's programmed into Moodle as the www. When I try and access Moodle via the private IP in my building it has a bunch of errors, pictures won't display, it's very slow, and won't let me login all the time. How can I get it to work with both the public URL and the private IP?