Domain Name resolution
If you've ever used the internet, it's a good bet that you've used the Domain Name System, or DNS, even without realizing it. DNS is a protocol within the set of standards for how computers exchange data on the Internet and on many private networks, known as the TCP/IP protocol suite. Its basic job is to turn a user-friendly domain name like "howstuffworks.com" into an Internet Protocol (IP) address like 70.42.251.42 that computers use to identify each other on the network. It's like your computer's GPS for the Internet.
Computers and other network devices on the Internet use an IP address to route your request to the site you're trying to reach. This is similar to dialing a phone number to connect to the person you're trying to call. Thanks to DNS, though, you don't have to keep your own address book of IP addresses. Instead, you just connect through a domain name server, also called a DNS server or name server, which manages a massive database that maps domain names to IP addresses.
Whether you're accessing a Web site or sending e-mail, your computer uses a DNS server to look up the domain name you're trying to access. The proper term for this process is DNS name resolution, and you would say that the DNS server resolves the domain name to the IP address. For example, when you enter "http://www.howstuffworks.com" in your browser, part of the network connection includes resolving the domain name "howstuffworks.com" into an IP address, like 70.42.251.42, for HowStuffWorks' Web servers.
You can always bypass a DNS lookup by entering 70.42.251.42 directly in your browser (give it a try). However, you're probably more likely to remember "howstuffworks.com" when you want to return later. In addition, a Web site's IP address can change over time, and some sites associate multiple IP addresses with a single domain name.
Without DNS servers, the Internet would shut down very quickly. But how does your computer know what DNS server to use? Typically, when you connect to your home network, Internet service provider (ISP) or WiFi network, the modem or router that assigns your computer's network address also sends some important network configuration information to your computer or mobile device. That configuration includes one or more DNS servers that the device should use when translating DNS names to IP address.
So far, you've read about some important DNS basics. The rest of this article dives deeper into domain name servers and name resolution. It even includes an introduction to managing your own DNS server. Let's start by looking at how IP addresses are structured and how that's important to the name resolution process.
Dns is a system that gives names to the IP address. It is a naming system for computers. It is like the internets telephone book.
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The Domain Name Registrar keeps track of your ownership of the domain name, and records where your domain is hosted. They relay that information to the Domain Name Servers around the globe, so that when someone enters your domain name in their browser, they are directed to your website.
Name resolution
DNS is Domain name system for short . Domain name system maps a name to an address. Protocol that relies upon DNS is TCP/IP .tcpip protocol
When you enter any website address, your internet provider views the DNS associated with the domain name or resolve the name into IP address and just connected to the domain server.
The process of converting a domain to IP address allows the system to access the DNS via resolver. The resolver then gets the domain name and goes back to the IP address or gets the IP address and looks for the domain name. When the domain name is converted to an IP address, this consists of the TCP's ability to operate and open a URL or send a datagram via the UDRP. It is then understood that all is manageable when a domain name is converted to an IP address.
This is possible because of what is called Domain Name Resolution (DNS). Your computer sends a lookup request for 'yahoo.com' to a DNS server, which resolves the domain name into it's IP address.
A domain registrant is the person who owns the domain name or requires a domain name for his/her business. A domain registrar is the organization that helps you find the appropriate domain name for your business.Example:DomainIndia (www.register-domainname.in) is the domain registrar that organization provides domain names registration and web hosting in India. Adolfina is the domain registrant who requires a domain name.
Purchasing a domain name is like claiming land to work on, you purchase this to claim space on the internet and promote your business to clients and to educate them on what the business is about.
HOSTS files Network Infrastructure Configuration Chapter 1: Introduction to Networking Concepts pg. 6