Google and SubDomains

How do I disallow almost duplicate subs?

[HayMeadows]

How do I keep Googlebot out of almost duplicate sub-domains?

Example:

www.widgets.com
red.widgets.com

Where www.widgets is our main site, and the only difference with red.widgets.com is that we have different graphics for "corporate" sponsorships.

TIA

[ciml]

I think I'd be tempted to use Robots Exclusion Protocol to deny crawling.

/robots.txt

User-agent: *
Disallow: /

[killroy]

You could have that in a file called red.robots.txt, then have a reqrite condition on host, and mod_rewrite robots.txt to red.robots.txt if th econdition holds.

This is assuming the apges don'T run on two sets of files.

SN