Domain name
hideA domain name is an identification label to define a realm of administrative autonomy, authority, or control in the Internet, based on the Domain Name System (DNS).
Domain names are used in various networking contexts and application-specific naming and addressing purposes. Domain names are organized in subordinate levels (subdomains) of the top-level Internet domains (TLDs), such as the prominent domains com, net and org. Below the top-level domains in the DNS hierarchy are the second-level and third-level domain names that are typically open for reservation by end-users that wish to connect local area networks to the Internet, run web sites, or create other publicly accessible Internet resources. The registration of these domain names is usually administered by domain name registrars who sell their services to the public.
Individual Internet host computers use domain names as host identifiers, or hostnames. Hostnames are the leaf labels in the domain name system usually without further subordinate domain name space. Hostnames appear as a component in Uniform Resource Locators (URLs) for Internet resources such as web sites (e.g., en.wikipedia.org).
Domain names are also used as simple identification labels to indicate ownership or control of a resource. Such examples are the realm identifiers used in the Session Initiation Protocol (SIP), the DomainKeys used to verify DNS domains in e-mail systems, and in many other Uniform Resource Identifiers (URIs).
An important purpose of domain names is to provide easily recognizable and memorizable names to numerically addressed Internet resources. This abstraction allows any resource (e.g., website) to be moved to a different physical location in the address topology of the network, globally or locally in an intranet. Such a move usually requires changing the IP address of a resource and the corresponding translation of this IP address to and from its domain name.
This article primarily discusses the group of domain names that are offered by domain name registrars for registration by the public. The Domain Name System article discusses the technical facilities and infrastructure of the domain name space and the hostname article deals with specific information about the use of domain names as identifiers of network hosts.
For more information about Domain name, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
News tagged with domain names
Egypt applies for first Arabic domain name
Nov 16, 2009 |
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(AP) -- Egypt's technology minister says the country has applied to register an all-Arabic domain name.
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EBay official: Employees shared Craigslist data
17 hours ago |
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(AP) -- Employees of Internet auction site eBay shared confidential information gained from Craigslist with other employees developing eBay's own online classifieds business, an eBay executive said Wednesday.
Geneticist reveals molecular view of key epigenetic regulator
Dec 09, 2009 |
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In a paper published this week in the journal Proceedings of the National Academy of Sciences, Dr. Michael Kobor reported the structure and function of a key player in regulating chromatin in yeast and humans.
Pay babysitter on iPhone, says Twitter
Electronics / Consumer & Gadgets
Dec 09, 2009 |
2.7 / 5 (3) |
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Microblogging service Twitter has branched into the market for electronic payments, unveiling a mini credit card swiper that plugs into the iPhone, at a European internet fair on Wednesday.
Life after silicon: Using exotic materials to help microchips keep improving
Dec 08, 2009 |
4.5 / 5 (8) |
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(PhysOrg.com) -- The huge increases in the power and capacity of computers, cell phones and communications networks in the last 40 years have been the result of ever-shrinking silicon transistors. But silicon ...
How fake sites trick search engines to hit the top
Dec 08, 2009 |
3 / 5 (1) |
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(AP) -- Even search engines can get suckered by Internet scams. With a little sleight of hand, con artists can dupe them into giving top billing to fraudulent Web sites that prey on consumers, making unwitting ...
Cyber crooks tarketing banks-social networks: Cisco
Dec 08, 2009 |
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An annual security report being released Tuesday by technology titan Cisco warns that banks and online social networks are prime targets for increasingly sophisticated cyber crooks.
Coin tosses can be easily rigged: study
Dec 07, 2009 |
3.6 / 5 (8) |
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The ubiquitous coin toss is not so random after all, and can easily be manipulated to turn up heads, or tails, a Canadian study has found.
Scientists discover gene module underlying atherosclerosis development
Dec 04, 2009 |
4 / 5 (1) |
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By measuring the total gene activity in organs relevant for coronary artery disease (CAD), scientists at the Swedish medical university Karolinska Institutet have identified a module of genes that is important for the recruitment ...
Wizard at circuits, physics
Dec 03, 2009 |
5 / 5 (13) |
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(PhysOrg.com) -- Donhee Ham, Gordon McKay Professor of Electrical Engineering and Applied Physics, uses his personal energy and understanding of physics to design innovative integrated circuits.
Psychologist studies how product messages influence our willingness to pay
Medicine & Health / Psychology & Psychiatry
Dec 03, 2009 |
4 / 5 (2) |
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(PhysOrg.com) -- As retailers bombard holiday shoppers with a blizzard of product bargains and layaway options, they should probably be concerned with the power of the words being used to promote their products to consumers. ...
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