Restrict access to directories hosting different sites

Question

My hosting provider requires that my primary domain (let's call it domainX.com) points to my public_html root. I also own several other domains (let's call them domainY.com and domainZ.com) that are hosted in subdirectories such that they can be accessed via http://domainX.com/domainY/ and http://domainX.com/domainZ/

I would like to restrict people from accessing these secondary sites in this way. Ideally, there will be no indication that the secondary sites are in any way related to the primary domain. How do I do this? Modify the .htaccess file?

Thanks for any help!

Answer 1

This should do it

RewriteEngine on
RewriteCond %{HTTP_HOST} domainx.com$ [NC]
RewriteRule ^domainy/ - [R=404,L]

(Adapted from this answer but I think mine is right whereas the first example in that one is wrong as it uses the wrong domain in RewriteCond. That should be enough, but you could try the other things in that question if it doesn't work.)

Answer 2

I don't think there is any indication whatsoever that they are in any way related. only if you know that there are folders in your primary domain that point to the other domains one could type them into the address bar. unfortunately i don't know if there is a way to prevent people from typing domainX.com/domain