Hello list,
I have a problem here with apache and vhosts that I hope you can help me to solve.

I have apache 2.2.6 running in a box called myserver.university.edu
I start apache with the following options:
APACHE2_OPTS="-D DEFAULT_VHOST -D USERDIR -D PHP5"

With USERDIR active, users can use: http://myserver.university.edu/username to access their files. It works.

Now I have a user who adquired a domain (let's say: www.example.com) and wants to redirect it to his user folder. For this, I edited the file: 00_default_vhost.conf
It looks like this:

--------------------------------------------------------------------------------------------
<IfDefine DEFAULT_VHOST>
Listen 80
NameVirtualHost *:80

<VirtualHost *:80>
        ServerName myserver.university.edu
        Include /etc/apache2/vhosts.d/default_vhost.include
        <IfModule mpm_peruser_module>
                ServerEnvironment apache apache
        </IfModule>
</VirtualHost>

<VirtualHost *:80>
     DocumentRoot /home/group1/user1/public_html/
     ServerName example.com
     ServerAlias www.example.com
</VirtualHost>

<VirtualHost *:80>
     DocumentRoot /home/group1/user1/public_html/subdomain1
     ServerName subdomain1.example.com
</VirtualHost>
</IfDefine>

--------------------------------------------------------------------------------------------

The file: default_vhost.include ; looks like this:

--------------------------------------------------------------------------------------------
ServerAdmin root@localhost
DocumentRoot "/var/www/localhost/htdocs"
<Directory "/var/www/localhost/htdocs">
     Options Indexes FollowSymLinks
     AllowOverride All
</Directory>
<Directory "/var/www/localhost/cgi-bin">
        AllowOverride None
        Options None
</Directory>
--------------------------------------------------------------------------------------------

The problem I am having is the following:

When I type: http://myserver.university.edu/username it works for any user.

When I type: http://subdomain1.example.com/ it shows the files hosted in /home/group1/user1/public_html/subdomain1

BUT, if I type: http://www.example.com or http://example.com, then, it doesn't show the files hosted in /home/group1/user1/public_html/ BUT it shows the files hosted in the root directory of apache: /var/www/localhost/htdocs

Can anyone help me? :-)