I have a situation where I have an SSL certificate for my domain, for example, "example.com". My clients use subdomains (CName) to point to my domain "example.com". I have permanent redirection on example.com which will keep any request on https.
When customers try to access content from my domain using their CName which is pointing to example.com with https, it doesn't work as there is no https configured for their subdomain on my domain or on my Apache configuration. I have little knowledge about the whole DNS thing but I am learning.
If I want to achieve the functionality where I can manage these subdomains to be on https, How can I do that? By the way... there are hundreds of customers using their subdomains to point to example.com