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Domain name system explained guide dns guide

DomainDNomamaien SNyasmteemSy sDteNmS Guide A CompCroemhepnliscaivtedantedchInn-odloegptyheGxpuliadienetdo iDnosmimaipnleNtaemrme sSystem SERVER SERVER SERVER OK WHG COM DNS WEBHOSTINGGEEKS COM WEBHOSTINGGEEKS COM BByy WWeebb HHoossttiinngg GGeeeekkss CTable of Content Introduction Name Servers Jump to Section Recursive vs Authoritative History of DNS Primary vs Secondary First Generation DNS Record Types Second Generation DNS Default NS Records Third Generation DNS Common Errors The IETF RFCs Function World Wide Web E- Mails Structure Zones and root name servers gTLD and ccTLD New Developments The New gTLD Program The Internet Protocol IP TCP IP Con ?guration Points to Public DNS Servers Erroneous DNS Su ?x Handling No Registered Records SNAME Error DNS Hijacking Security Issues and Hijacking Common Terms and Meanings Useful Tools Sources RFCs IPv vs IPv CIntroduction Have you ever wondered how the Internet really works Many people do from simple web sur ?ng to sharing pictures on social media In fact the Internet heavily relies on something called a DNS a database of network names and IP addresses These three little letters hold huge weight Without DNS the Internet as we know it would simply not exist and we would be left dealing in ones and zeroes Without DNS everyday activities such as shopping web browsing research communications or downloading would not be possible That is why experts usually refer to DNS as the Phonebook of the Internet Jump to Section ? History ? Function ? Structure ? New Developments ? Internet Protocol IP ? Name Servers ? Common Errors So what is DNS and why is it important In brief DNS is a comprehensive translation system used to search the Internet You might wonder naturally what it translates Well in the simplest de ?nition DNS is the term used to describe a system that assigns user-friendly names to unique IP addresses It translates unfathomable amounts of data into words and phrases in order to provide clear and accurate search results ? Security Issues ? Common Terms ? Tools ? Sources While computers communicate using strings of numbers humans obviously do not DNS translates such number strings into human-friendly phrases You see each IP address must be distinct in a network which allows users to reach a particular website An IP address could be a set of any four numbers from to like When you type a domain name into your browser the DNS system bursts into action translating the browser name into the IP address associated with the website Once the website IP address is found your computer connects with the web host and the requested page is displayed on your computer While the concept might seem basic DNS is a cornerstone in how the Internet functions Download Infographic WE BHO ST INGG EE KS COM WebHostingGeeks com CHistory of DNS It is imperative for today ? s Internet users to be aware of the evolution and history of DNS This system was initially conceptualized to support the growth of communication via email on the ARPANET Now it supports the Internet on a