MCSA/MCSE Self-Paced Training Kit (Exam 70-270): Installing ...

Lesson 4 Configuring a DNS Client
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The Append Parent Suffixes Of The Primary DNS Suffix check box is also selected by
default. If it is selected, the DNS resolver strips off the leftmost portion of the primary
DNS suffix and attempts the resulting domain name. If this fails, it continues stripping off
the leftmost label and attempting the resulting domain name until only two labels remain.
For example, assume again that an organization uses the domain name north.contoso.com,
and that the Append Primary And Connection Specific DNS Suffixes option
is enabled. Normally, the suffix north.contoso.com would be added to unqualified
queries, so that a user typing in client1 would have the query appended to
client1.north.contoso.com. If you enable the Append Parent Suffixes Of The Primary
DNS Suffix option, DNS first uses the suffix north.contoso.com in the normal way. If
that did not resolve, DNS would use the parent suffix contoso.com, and finally the parent
suffix of that: .com. So when the user types client1, DNS would first try
client1.north.contoso.com, then client1.contoso.com, and finally client1.com.
Append These DNS Suffixes (In Order) Option
By default, the Append Primary And Connection Specific DNS Suffixes option is
selected, so the Append These DNS Suffixes (In Order) option is not selected; only one
of these two options can be selected at one time. This option allows you to specify a
list of domains to try. The DNS resolver adds each one of these suffixes one at a time
and in the order you specified. Queries for unqualified names that are used on this
computer are limited to the domains that you listed in Append These DNS Suffixes (In
Order). Continuing the example from the previous section, you could specify that DNS
suffixes be appended in the order .com, then contoso.com, and then north.contoso.com.
Register This Connection’s Addresses In DNS Option
Selecting the Register This Connection’s Addresses In DNS check box causes the computer
to attempt to dynamically register the IP addresses (through DNS) of this computer
with its full computer name. To view the computer name for this computer, click Start,
click My Computer, click View System Information, and click the Computer Name tab.
Use This Connection’s DNS Suffix In DNS Registration Option
Selecting the Use This Connection’s DNS Suffix In DNS Registration check box causes
the computer to use DNS dynamic updates to register the IP addresses and the connection-specific
domain name of the connection. The connection-specific name of this
DNS connection is the computer name, which is the first label of the full computer
name specified in the Computer Name tab located in View System Information, and the
DNS suffix of this connection. If the Register This Connection’s Addresses In DNS
check box is selected, this registration is in addition to the DNS registration of the full
computer name.