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Creating CNAME Zone Records

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TitleCreating CNAME Zone Records
Description

What is a CName record?

CNAME (or Canonical) records are used to resolve to another host name rather than an IP address (as A records do). They may be used when pointing a domain to a service such as Blogger, Tumblr or Gmail, where user accounts are subdomains or directories of the service.

Example:
NameTTLRecord ClassRecord TypeHost
blog3600INCNAMEghs.google.com

In this example, whenever a request is made for the URL http://blog.mydomainname.com.au, the CNAME record will direct visitors to Google's Blogger servers at ghs.google.com. If a Blogger user has setup a blog at Blogger such as http://mydomainname.blogspot.com but wants to use a custom domain name, they'll need to configure the Blogger servers to accept the blog.mydomainname.com.au name request as well as point the host name blog.mydomainname.com.au to the Blogger servers via the CNAME record.

Changing CNAME records

To modify or create any CNAME records

  1. Login to the Console
  2. Manage the domain you want to make changes to
  3. Click Zone Manager
    Note: If this option is not displayed, please contact Melbourne IT Technical Support. The Zone Manager page details the domain zone records and allows for changes to A, CNAME, MX, NS, TXT  or SRV records
  4. Click 'Add a zone record' 
  5. Select CNAME
  6. In the following page, fill in the blank fields: 
    1. Name - Type in the subdomain you wish to create a CNAME record for.eg. Type blog, mail, or www rather than the full host name such as blog.mydomainname.com.au or www.mydomainname.com.au
    2. TTL - This is the Time to Live, it is best to leave the default setting
    3. Host - The name of the host to point the subdomain to, such as ghs.google.com
  7. Click [Add Record]

Note: Standard DNS propagation time of up to two hours may apply. Refreshing the internet browsers cache can help to display the changes if they're not automatically visible after two hours. Press CTRL-F5 (PC) or CMD-R (Mac).

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