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'''DNS''' (Domain Name System) is the system used to translate alphanumeric domain names into Internet Protocol numbers.<ref>[http://icannwiki.org/Domaining_Glossary Domaining Glossary]</ref>

'''DNS''' ('''D'''omain '''N'''ame '''S'''ystem) is the system used to translate alphanumeric domain names into Internet Protocol numbers.<ref>[http://icannwiki.org/Domaining_Glossary Domaining Glossary]</ref>

==Short overview==

==Short overview==

The DNS is made up of many servers and databases which, through a series of lookups in various caches, resolve [[Domain Name]]s to [[IP Address]]es. The Domain Name System is a distributed database arranged hierarchically. Its purpose is to provide a layer of abstraction between other Internet services (web, email, etc.) and the numeric addresses (IP addresses) used to uniquely identify any given machine on the Internet. The DNS associates various information with the domain names assigned and, most importantly, translates the domain names meaningful to humans into the numerical identifiers that locate these devices at worldwide level.  

The DNS is made up of many servers and databases whose job it is to resolve [[Domain Name]]s to [[IP Address]]es. The Domain Name System is a distributed database arranged hierarchically. Its purpose is to provide a layer of abstraction between other Internet services (web, email, etc.) and the numeric addresses (IP addresses) used to uniquely identify any given machine on the Internet. The DNS associates various information with the domain names assigned and most importantly it manages to translate domain names meaningful to humans into the numerical identifiers with the purpose of locating these devices at worldwide level.  

==How does it work?==

==How does it work?==

The DNS makes it possible to assign domain names in a meaningful way to Internet resources as well as users in a meaningful way, regardless of the entity's location. As a result, the WWWW hyperlinks (World Wide Web) will maintain its consistency and will stay constant even in the case of using a mobile device. Due to the fact that the Internet domain names are easier for humans to keep track of as compared to [[IP addresses]], this is an important advantage for the user because the computer will locate the [[URL]]s (Uniform Resource Locators) or even e-mail addresses the users may be looking for.

The DNS makes it possible to assign domain names in a meaningful way to Internet resources as well as to users, regardless of the entity's location. As a result, the WWW hyperlinks (World Wide Web) will remain consistent, even in the case of using a mobile device. Due to the fact that the Internet domain names are easier for humans to keep track of than [[IP addresses]], this is an important advantage for the user because the computer will locate the [[URL]]s or even e-mail addresses the users may be looking for.

Coordination across the Internet is maintained by means of a complex authoritative root system known as [[Top Level Domain]] ([[TLD]])DNS  and other smaller name servers responsible with hosting individual domain information. For each domain, the DNS spreads the responsibility by mapping the domain names and assigning them into IP addresses, and vice-versa. This is accomplished through authoritative name servers which are being designated for each domain. Each authoritative name server is responsible for its own particular domain while having the authority to assign new authoritative name servers to any  of their sub-domains. The DNS is able to store many types of information, even the mail server lists for a specific domain. In order to ensure the functionality of the Internet, the DNS is a core element through its distributed keyword-based redirection service.  

Coordination across the Internet is maintained by means of a complex authoritative root system known as [[TLD|Top Level Domain]], DNS  and other smaller name servers responsible for hosting individual domain information. For each domain, the DNS spreads the responsibility by mapping the domain names and assigning them into IP addresses, and vice-versa. This is accomplished through authoritative name servers which are being designated for each domain. Each authoritative name server is responsible for its own particular domain, while having the authority to assign new authoritative name servers to any  of their sub-domains. The DNS is able to store many types of information, even the mail server lists for a specific domain. In order to ensure the functionality of the Internet, the DNS is a core element through its distributed keyword-based redirection service.  

However, the DNS does not include security extension, which was further developed as [[DNSSEC]].  

However, the DNS does not include security extension, which was further developed as [[DNSSEC]].