mod_rewrite all robots.txt requests to default file, server-wide

So, I have a development server running OpenSuse with apache. There are loads of projects on this server, some of them have an online/live counterpart.

Each project has a separate subdomain.

How do I开发者_高级运维 rewrite all requests for robots.txt to one "default"-file, server wide?

My goal is to prevent indexing from search-bots.

I believe there is no easier way than to set an Alias in every VirtualHost directive:

Alias /robots.txt /home/path/to/generic/robots.txt

I'm happy to stand corrected by a truly global solution, though.

I was having the same problem and found that I could place the Alias declaration that Pekka suggests in the httpd.conf outside of the VirutalHost directive and it applied to all sites.