Dns; Dns Global Settings - D-Link DXS-3600 Series Reference Manual

DXS-3600 Series Layer 3 Managed 10Gigabit Ethernet Switch Web UI Reference Guide
The fields that can be configured in DHCP Auto Configuration are described below:
Parameter
Auto Configuration State
Click the Apply button to accept the changes made.

DNS

Computer users usually prefer to use text names for computers for which they may want to open a
connection. Computers themselves, require 32 bit IP addresses. Somewhere, a database of network
devices' text names and their corresponding IP addresses must be maintained.
The Domain Name System (DNS) is used to map names to IP addresses throughout the Internet and has
been adapted for use within intranets. For two DNS servers to communicate across different subnets, the
DNS Relay of the Switch must be used. The DNS servers are identified by IP addresses.
Mapping Domain Names to Addresses
Name-to-address translation is performed by a program called a Name server. The client program is
called a Name resolver. A Name resolver may need to contact several Name servers to translate a name
to an address.
The Domain Name System (DNS) servers are organized in a somewhat hierarchical fashion. A single
server often holds names for a single network, which is connected to a root DNS server - usually
maintained by an ISP.
Domain Name Resolution
The domain name system can be used by contacting the name servers one at a time, or by asking the
domain name system to do the complete name translation. The client makes a query containing the name,
the type of answer required, and a code specifying whether the domain name system should do the entire
name translation, or simply return the address of the next DNS server if the server receiving the query
cannot resolve the name.
When a DNS server receives a query, it checks to see if the name is in its sub domain. If it is, the server
translates the name and appends the answer to the query, and sends it back to the client. If the DNS
server cannot translate the name, it determines what type of name resolution the client requested. A
complete translation is called recursive resolution and requires the server to contact other DNS servers
until the name is resolved. Iterative resolution specifies that if the DNS server cannot supply an answer, it
returns the address of the next DNS server the client should contact.
Each client must be able to contact at least one DNS server, and each DNS server must be able to
contact at least one root server.
The address of the machine that supplies domain name service is often supplied by a DHCP or BOOTP
server, or can be entered manually and configured into the operating system at startup.

DNS Global Settings

This window is used to view and configure the DNS global settings.
To view the following window, click Management > DNS > DNS Global Settings, as shown below:
Description
Select this option to enable or disable the auto-configuration function.
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