Thread:Project:Support desk/influence content based on domain

We have a wiki installation that is accessed from multiple similar domains. e.g. wiki.mydomain.com, wiki.mydomain.ca, wiki.mydomain.co.uk. Some wiki articles can apply to all domains but other articles apply to only one domain. We want to be able to cause the articles that apply to only one domain to be accessible on only one domain. For example, if you search for text in the article, it will not show up in search results, or the article will not appear in the list of articles belonging to a category.

Is this remotely possible?

One option is to have multiple wiki installations, each with its own database. But then you have a lot of duplicated content (I'm referring to the articles that apply to all domains) and have the extra overhead of, when you have to update an article, having to update the article on all installations. I don't think we want that.