What is DNS (Domain Name System)?
By Brian Lyn-Cook
The Domain Name System (DNS) gives website visitors access to a website sites using domain names (friendly name) rather than IP addresses.
A friendly name is a name that is easily remembered.
IP adderss is your unique identifier on the internet consisting of four numers seperated by periods.
How does DNS work?
DNS translates human-language (friendly names) into computer-language (IP address). Domain names are text-based names used to identify a website or Internet location. IP addresses are strings of numbers seperated by periods used by every computer on the Internet to identify a website or server location. Computers uses IP address to communicate with other computers and Web servers.
DNS converts the human-name of the website to the number-based IP address of the associated website or Internet location. For example, myexample.com is a domain name. 220.127.116.11 is an IP address associated with myexample.com. DNS translates the domain name myexample.com to the IP address 18.104.22.168.
When we use DNS, we can enter easily-remembered human-language domain names. DNS will converth the human name to the computer name or IP addresses.
How does DNS know which IP address to use?
Each domain name stores its DNS information in a zone file. Large collections of zone files for different domain names are stored on nameservers. Domain names point to nameservers to locate their zone files — to do this, a domain name must point to the nameserver holding its specific zone file.
How do I know which nameserver to use?
When you register a domain name with us, we automatically park the domain name and set its nameserver to our parking servers. If you activate the domain name or make changes to your website’s hosting, your hosting company provides the nameserver names or IP addresses where your domain name’s zone file is located. Use this information to update your domain name settings at your registrar. Once you’ve updated your nameservers or IP address, allow 24 to 48 hours for the new information to propagate through the Internet, and then visitors can reach your website using your domain name.
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