Page Comparison

...

<place for figure>

In the case of a domain structure consisting of a single domain (no subdomains), adding a DNAME record redirects queries for every name in the domain to the target domain, as shown in Figure 20.4.

<place for figure>

When using a DNAME record, you must copy the resource records for the source domain to the zone containing the target domain, so that the DNS server providing service for the target domain can respond to the redirected queries.

<place for figure> After copying these records to the zone containing the corpxyz.corp200.com domain, delete them from the zone containing the corpxyz.com domain.
If DNS service for the source and target domain names is on different name servers, you can import the zone data from the NIOS appliance hosting the source domain to the appliance hosting the target domain. For information about this procedure, see Importing Zone Data.
If DNS service for the source and target domain names is on the same name server and the parent for the target domain is on a different server, you can delegate DNS services for the target domain name to the name server that provided—and continues to provide—DNS service for the source domain name (see Figure 20.5). By doing this, you can continue to maintain resource records on the same server, potentially simplifying the continuation of DNS administration.

<place for figure>

Note: This is a conceptual representation of domain name mapping and depicts the resulting hierarchical relationship of corp200.com as the parent zone for corpxyz.corp200.com. The hosts are not physically relocated.

The following tasks walk you through configuring the two appliances in Figure 20.5 to redirect queries for corpxyz.com to corpxyz.corp200.com using a DNAME record:
On the ns1.corpxyz.com name server, do the following:

...