Change in apache vhosts files' format
Looks like there was a quite silent change in the format of apache’s config files from ubunutu hardy to intrepid (maybe related to the move from debian to its etch release).
Ports.conf now has a statement
Which means all the vhost files (as in /etc/apache2/sites-enabled) need a directive :
Important part is the :80 statement. If missing, this leads to strange
[warn] default VirtualHost overlap on port 80, the first has precedence