Mod Vhost & URL rewriting

I'm playing with mod_vhost_alias at the moment and have got as far as...

www.domain.com being served from /www/docs/domain.com/www/
subdom.domain.com from /www/docs/domain.com/subdom/

via VirtualDocumentRoot /www/docs/%2+/%1
So far so good....

Problem is that if someone enters http://domain.com we're stuck as we'd
normally want it to be served from the www. dir.

I can't work out whether I should be looking at URL rewriting or doing a
redirect ??
Or possibly something easier than that even?

Just as a bonus question :-) What sort of httpd.conf set up to most of the larger hosts tend to use for hosting 100's of domains? ie with respect to the above.

 

 

 

 

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