I've read several explanations of how to change a sites URL but I am not having luck. I have made the changes in my apache2 sites-available conf file and restarted apache2. I have also changed the base in civicrm.settings.php. Now the new URL just goes to the Apache default page.
Some things I have read say I have to clear the CiviCRM cache but I can't do that if I cannot access the site.