Understanding And Function DNS

Understanding And Function DNS - Domain Name System (DNS) is a system where information of domain names and host names are stored in database form. DNS will provide the IP address of each host and domain name. It can be concluded that DNS is a name used to transmit server IP addresses. In other words DNS will change the IP address into a domain name, for example: 
www.google.co.id, www.facebook.com and others.

DNS function on computer network

DNS has a function to facilitate users in memorizing and accessing a particular web server address. Someone will find it difficult to memorize every IP address of a particular web server. For example on google.com, www.google.com has an IP address, users will be easier to memorize a domain name www.google.com rather than memorizing the IP address.

DNS is used for domain name services to complete the request of website names to IP addresses in order to find computer services and devices worldwide.

According to Blogger Ecgalery, Prior to the use of DNS, computer networks used HOSTS files that contained information from the computer's name and IP address. On the Internet, this file is managed centrally and in every loaction must be copied to the latest version of HOSTS files, from here it can be imagined how much trouble if there is addition of one computer in the network, then we must copy the latest version of this file to every location.

With the growing Internet network, of course this will be inconvenient. Then a solution is created where DNS is designed to replace HOSTS files, with unlimited database size, and good performance.

The basic principle of DNS

Domain Name System (DNS) is used as a network name search engine that uses TCP / IP (Transmission Control Protocol / Internet Protocol). DNS is usually used in certain applications connected to Internet networks such as web browsers and web mail, where DNS will help the user in mapping the host name of a computer to the ip address.


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