Server Fault is a question and answer site for system and network administrators. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

Is it possible to configure DNS such that:

  1. has CNAME record to

  2. has A record to our dedicated IP (so that if we change servers in the future, our clients won't have to update their CNAME mappings)

We can then capture & process requests made to

share|improve this question
up vote 2 down vote accepted

It certainly should be possible, the owner of should just setup a wildcard record. Keep in mind that the DNS manager provided by some registrars doesn't support a wildard record, or a wildcard cname record.


Your shouldn't have to do anything special for your A record for

share|improve this answer

Sure, you'd have to replace (or introduce to your clients) an intermediate CNAME to give you such flexibility. (In lieu of your A record)

So basically you'd have: (CNAME) => (CNAME) => (A)

Then you can re-map your "intermediate CNAME" to whatever A record you'd like without notifying clients.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.