map subdomain to another subdomain via cname
- by Stephen
Question: I need to get DNS configured to point a subdomain from one domain (which I will generally not be controlling) to another subdomain on a different domain name. Testing this process using a simple CNAME entry keeps pointing to the primary domain and not the subdomain where it should be going.
This is the scenario; (newdomain.com is in my control)
cdn.xyz.com should display content from this subdomain subdomain.newdomain.com
It is instead displaying content from newdomain.com (not the subdomain sub domain)
cdn.xyz.com/page.htm displays content from newdomain.com/page.htm although what I need is it to display content from subdomain.newdomain.com/page.htm
Other Background:
setup is between two different servers with different IP ranges although DNS cluster is on between all servers
the newdomain.com is set up with its own unique IP (which is on the A records for the subdomains, the subdomains work as expected/normal)
the DNS entry is correct (cdn CNAME subdomain.newdomain.com.) ie the end period is included
a DNS lookup on the CNAME externally reports back as subdomain.newdomain.com. as the record
Does anyone know what DNS entries I am missing to get this working correctly ?
Note: I do not want to just put a redirect between domains as I need the content of subdomain.newdomain.com/content.html to be visible via the URL of cdn.xyz.com/content.html also I can just use some redirects on newdomain.com to achieve what I am after but would prefer to just get the DNS correct.
EDIT
Current DNS
cdn CNAME subdomain.newdomain.com. || CNAME entry for domain1
subdomain A XXX.XXX.XXX.XXX || A record entry for working subdomain pointing to unique IP
What should happen is that cdn.domain1.com - subdomain.newdomain.com
What is happening is cdn.domain1.com - newdomain.com (ie. the root not the subdomain)
EDIT 2
Actually if its easier I am trying to emulate a simple cloud setup like Rackspace Containers (which I assume is similar to Buckets on AWS). although it is not for cloud storage
Where a container has a url reference of hd62321678d323.rackspace.com (in truth they are much longer) so I can use a CNAME record of:
cdn CNAME hd62321678d323.rackspace.com.
so that http://cdn.mydomain.com/myfile.jpg displays content from http://hd62321678d323.rackspace.com/myfile.jpg