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Wednesday, March 28, 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


Why and how to use custom DNS settings on your iPhone, iPad, and Mac
Why and how to use custom DNS settings on your iPhone, iPad, and Mac. Source : www.idownloadblog.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


SEARCH Domain Names
SEARCH Domain Names. Source : www.name.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


Web Pages Not Loading? Here's How to Change Your Mac's DNS Servers ...
Web Pages Not Loading? Here's How to Change Your Mac's DNS Servers .... Source : www.macobserver.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


Docker and Service Discovery (on OS X)
Docker and Service Discovery (on OS X). Source : gijs.github.io

See also


How do I configure Yosemite to be able to resolve DNS ending in ...
How do I configure Yosemite to be able to resolve DNS ending in .... Source : apple.stackexchange.com

  • Domain Name System
  • DHCP Options

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

 
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