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Sabtu, 03 Maret 2018

A search domain is a domain used as part of a domain search list. The domain search list, as well as the local domain name, is used by a resolver to create a fully qualified domain name (FQDN) from a relative name. For this purpose, the local domain name functions as a single-item search list.

IPv4




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In an IPv4 environment, search domains are often set via DHCPv4, along with the local domain name. The domain search list is configured by the Domain Search Option (DHCPv4 option number 119), while the local domain name is configured by Domain Name (DHCPv4 option number 15).

The Windows operating system, however, does not understand the Domain Search Option; as a workaround, many network administrators use Group Policy Objects to set the domain search list for Windows machines.

IPv6


15 Best Domain Name Generators - HostingFacts.com
15 Best Domain Name Generators - HostingFacts.com. Source : hostingfacts.com

In an IPv6 environment, the domain search list is called a DNS Search List (DNSSL) and can be configured by Router Advertisement and DHCP.

Manually configuring domain search lists


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Free Domain Name Registration | Get Free Web Domain Hosting. Source : www.1and1.com

In Linux it can be defined by editing the ifcfg file corresponding to the network. In Mac OS X the setting is located under the DNS tab, next to DNS server settings. A similar setting in Microsoft Windows is the Connection-specific DNS Suffix.

Functionality


Domain search icon Royalty Free Vector Image - VectorStock
Domain search icon Royalty Free Vector Image - VectorStock. Source : www.vectorstock.com

When looking up a bare name in DNS, the network stack will add the search domains to it to form fully qualified domain names, and look up those as well. For example, if the domain search list contains "wikipedia.org", typing "en" in the browser will direct the user to "en.wikipedia.org". Some ISPs add their own search domains via DHCP settings, similar to how they add DNS servers and other networking information; if this is undesired, the user can change this setting to ".local".

References


Domain Lookup Representing Domains Searches And Realm Stock Photo ...
Domain Lookup Representing Domains Searches And Realm Stock Photo .... Source : www.123rf.com

See also


Domain search icon Royalty Free Vector Image - VectorStock
Domain search icon Royalty Free Vector Image - VectorStock. Source : www.vectorstock.com

  • Domain Name System
  • DHCP Options

Domain Search Icon stock vector art 890712878 | iStock
Domain Search Icon stock vector art 890712878 | iStock. Source : www.istockphoto.com

 
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