Apple Workgroup Server 8550 - Manual (Page 47)

To use a domain name that is not fully qualified in the TCP/IP hosts file,
you can use two records. The first record associates a local alias with a fully
qualified domain name, and the second record resolves the domain name to
an IP address. For example, you might have the following entry in a
MacTCP hosts file:
bigcomputer A 128.1.1.1
To accomplish the same effect of associating “bigcomputer” with the
address 128.1.1.1, an Open Transport hosts file needs these two records:
bigcomputer CNAME largedomain.xyzcorp.com
largedomain.xyzcorp.com A 128.1.1.1
The first record associates the alias “bigcomputer” with the fully qualified
domain name “largedomain.xyzcorp.com.” The second record resolves that
domain name to the IP address 128.1.1.1.
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