This experience gives the site a custom domain name on Windows Azure, first "CNAME" and "a record" are the concepts that must be understood.
Assume that the site domain name on Windows Azure is: x.chinacloudsites.cn
CNAME
With CNAME, you can map domain names such as mywebiste.com, www.mywebsite.com, to x.chinacloudsites.cn. Mywebiste.com, www.mywebsite.com equivalent to x.chinacloudsites.cn alias, once added a CNAME record in DNS, DNS will automatically mywebiste.com, www.mywebsite.com resolves to the IP where the x.chinacloudsites.cn resides, and the CNAME does not need to make any changes, even if the IP of the x.chinacloudsites.cn is changed.
A record
With a record, you can map domain names such as mywebiste.com, www.mywebsite.com,*.mywebsite.com to x.chinacloudsites.cn corresponding IP addresses.
→ Open the Windows Azure Management Portal
→ Click on the Left "website"
→ Click Site name
→ Click on "Zoom"
→ select "Share" in the "Web hosting plan Mode" and click "Save" below.
→ Click "Site" on the left again, click on the site name, click "Manage Domain Name" below, and in the "Manage Custom Fields" window, copy the "IP address used when configuring a record"
→ Open domain name Resolution management
Add an "a record"
Add three "CNAME" records, as follows (xx is the site name on Windows Azure):
Awverify awverify.xx.chinacloudsites.cn
Awverify.www awverify.xx.chinacloudsites.cn
www xx.chinacloudsites.cn
→ Back to manage custom Fields window, add 2 forms of custom domain name
Mywebiste.com
Www.mywebsite.com
Finally click Save.
Configure a custom domain name for a Web site on Windows Azure