Suppose I have a portal www.mysite.com which has subdomains like user1.mysite.com, user2.mysite.com and suppose a user, say user1 has a domain - www.user1.com.
Can user1 create a subdomain - mysite.user1.com which will point to the existing user1.mysite.com?
I know I can redirect it but that's not what I am looking for.
Explaining my problem a bit more.
i have a rails app running on apache and passenger, on a machine with ip say xxx.xxx.xxx.xxx, to which www.mycustomservice.com is pointed to.
suppose i am creating a new subdomain called client1.mycustomservice.com which will serve a couple of static pages from the same rails app, can i do something so that the requests to customservice.client1.com is served from this same app ?