Information Technology Reference
In-Depth Information
with a name, and if it matches an CNAME record, the DNS server looks up the IP address
for the host name that the CNAME points to and returns an IPv4 address for that host
name. You can create a CNAME record with the DNS Manager console or by using the
Add-DnsServerResourceRecordCName or Add-DnsServerResourceRecord cmdlet.
CNAME records are typically used to provide an alternate host name during a transi-
tion phase or to point to specific services that run on the same server. So, for example, you
might use a CNAME of ns1 to point to trey-dc-02 in the treyresearch.net zone and also use a
CNAME of ns1 to point to tail-dc-102 in the tailspintoys.com zone, enabling you maintain a
uniform naming convention across domains.
To create a CNAME record with the DNS Manager console, follow these steps:
Open the DNS Manager console.
1.
Expand the server on which you want to create the record and then expand Forward
Lookup Zones.
2.
Right-click the DNS domain name in which you want to create the record and select
New Alias (CNAME).
3.
4.
Enter the host name in the Name box. (You don't need to enter the FQDN, just the
host name.)
Enter the FQDN of the target host, as shown in Figure 3-17.
5.
FIGURE 3-17
The New Resource Record dialog box
Click OK to create the record.
6.
