The Importance of Using CNames with Windows Azure

January 22 2010

I recently had to move an Azure service from one account to another.  Unfortunately, they could not migrate my account, which meant that I manually had to migrate it.  In the case of the service, I had created a cname {name}.mysite.com that pointed to the Azure DNS name ({name}.cloudapp.net).  Lucky me: I was able to migrate the service and then repoint the CName to the same DNS entry with no changes or problems.  But in the case of my blob storage ({name}.blob.core.windows.net) I hadn't created a Cname, which means I manually have to update any reference to anything in blob storage. 

Lesson learned: use CNames for everything in Azure in case you need to transfer accounts, ownership, etc.

Comments (2) -

2/2/2010 8:58:24 AM #

Karsten Januszewski

BTW, the sites I'm referring to are http://incarn8.cloudapp.net which points to http://incarnate.visitmix.com

Karsten Januszewski

8/29/2011 1:59:53 AM #

Tan Silliksaar

There is a DNS service available for Windows Azure called "DNS Azure" that changes your cloudapp's IP address automatically. See dnsazure.com
This service helps you to avoid CNAMEs as A records are updated automatically.

Tan Silliksaar

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