I want to insulate myself from changes to the domain of the server we're using. For example, right now we need to point to:
www.oursite.com. IN CNAME www.myserver.com.
But the service we're using to host the site is changing it so we have to change the CNAME of every domain we have pointed to their new domain:
www.oursite.com. IN CNAME www.myserver-two.com.
Since we have over a hundred domains that we must make this change to, we want to insulate ourselves in case this happens again in the future. Is it valid to setup a single domain ourselves:
www.corpsite.com. IN CNAME www.myserver-two.com.
And then point all of our other domains to that one:
www.oursite.com. IN CNAME www.corpsite.com.
Such that www.oursite.com
will route through www.corpsite.com
and end up hitting the correct server at www.myserver-two.com
?
EDIT:
We have attempted this on one of the domains and it... appears to be working, but we cannot ping it (pings timeout). So we're not sure if it's just "accidentally" working, and what other issues there might be to doing things this way.
And this is what happens when I ping it:
$ ping www.oursite.com
PING us-east-1-a.route.myserver-two.com (scrubbed): 56 data bytes
Request timeout for icmp_seq 0
Request timeout for icmp_seq 1
Request timeout for icmp_seq 2
Request timeout for icmp_seq 3
I think this is unrelated - I believe the server we're using is dropping ICMP packets.