Multiple sites accessing one blog

Hi All,

I have a site which I am currently hosting a WP blog on. What I would like to do, is have several sites pulling data from that same blog, and I want the url’s to start with the domain that they are currently on so they can be bookmarked and return to the same site.

For instance…here is what I’d like to do:

https://www.site1.com
https://www.site2.com
https://www.site3.com

Now, let’s say https://www.site1.com is where the blog is installed. I would like to create a new post there and categorize it as ‘Music’. Then, I would like to also categorize it as ‘Site1’ and ‘Site2’ to determine which sites would display the post. Now, if someone goes to site1 or site2 they would see the post, but someone going to site3 would not. And, the urls would read https://www.site1.com/music/this-is-my-post and https://www.site2.com/music/this-is-my-post depending on which site they are on.

I figure I can change the code in the templates to look at the url and then use that to filter out the posts in the loop. But, I’m not sure how to get three domains pointing at the same blog hosted on the 1st domain. I don’t want to redirect because I want each site to monitor it’s own traffic and see it’s own content.

Also, I should mention that I would like to do this without having to install WP on the other domains if at all possible.

Any suggestions? Can this even be done?