DNS Client Settings

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DNS uses fully qualified domain names (FQDN) to identify a computer. FQDNs are composed of the host name and the domain name (also called a suffix). Windows client computers can be identified using two different DNS suffixes:

 

• Primary suffix, set through the System properties.
• Connection-specific suffix, configured through the TCP/IP properties for the network adapter.

With dynamic DNS, client computers can update the DNS database with their host name. Keep in mind the following facts about client dynamic updates:

• By default, Windows 2000/XP/2003 clients register their DNS name with the DNS server.
• In the TCP/IP properties, Advanced settings, DNS tab, the Register this connection's addresses in DNS setting controls whether the client dynamically registers its name with DNS.
• With dynamic DNS enabled on the client, the computer will register its full DNS name from the configuration on the Network Identification tab of the System applet (using the primary suffix).
• You can configure the client to register two different DNS names with the DNS server. To do this, in the TCP/IP properties, Advanced settings, DNS tab, identify an additional DNS suffix for the client and enable the Use this connection's DNS suffix in DNS registration option. When enabled, the client will register its name with the connection-specific suffix as well as the primary suffix.

You can also configure the client with custom search suffixes.

• By default, when you submit a DNS query without using the fully qualified domain name (FQDN), the client computer appends the computer's domain to the name to perform the DNS lookup. The client will also use parent suffixes to try the request multiple times.
• Edit the Advanced TCP/IP properties to customize the search suffixes. You can specify search suffixes outside of the parent suffixes, and modify the order in which suffixes are used for searches.