[apache] Apache default VirtualHost

I found the answer: I remembered that Apache uses the first block if no other matching block is found, so I've added a block without a serveralias at the top of the blocks:

NameVirtualHost *

<VirtualHost *>
    DocumentRoot /defaultdir/
</VirtualHost>

<VirtualHost *>
    ServerAdmin [email protected]
    DocumentRoot /someOtherDir/
    ServerAlias ip.of.the.server
</VirtualHost>

<VirtualHost *>
    ServerAdmin [email protected]
    DocumentRoot /someroot/
    ServerAlias domain.com *.domain.com
</VirtualHost>