So in the last week I tried to upgrade my Ubuntu 13.04 droplet on DigitalOcean to Ubuntu 13.10. It hosts a few some small sites using Apache2, Python, Django and mod_wsgi. After updating the Ubuntu instance my Apache2 version was incremented to Apache 2.4. After researching the issue for a little while I found that, Apache 2.4 wants enabled virtual host config files to end in .conf by default.
After I'd modified the configurations to use the .conf file suffix and reloaded the Apache2 service, I discovered another issue to over come. All my pages on my virtual hosts were returning a 403 Forbidden error messages. After a few more queries on DuckDuckGo, I'd learned that it was necessary for my to add the Directory declaration in my .conf files to grand access to all paths.
<Directory /> Require all granted </Directory>
Once I'd completed all these modification and restarted the service everything was back in business!
An Example .conf file
<VirtualHost *:80> ServerName domain.tld ServerAlias *.domain.tld WSGIScriptAlias / /home/username/public_html/domain.tld/project/app/wsgi.py Alias /static/ /home/username/public_html/domain.tld/project/static/ <Directory /> Require all granted </Directory> <Location "/static/"> Options -Indexes </Location> </VirtualHost>