Nameservers are the computers accessible on the Internet which explains us where a website is located. They are responsible for a special process called resolving. During this process, a domain name of your website is taken, and a physical address is obtained or the machines which perform the DNS(Domain Name System) function by providing the mapping of domain names to particular IP addresses or the server which returns an IP(Internet Protocol) address when given a domain name.
This IP address is basically the domain’s location on the Internet is called as Name servers.It is also referred as DNS servers (and vice versa) because they basically perform the same function; when given a domain name, they return the IP address for that domain.
It is very important for you to provide names of the nameservers when you buy or configure your domain name. These names are obtained from your hosting company when you sign up for hosting service.
These Nameservers are of 2 types ie.Primary Nameservers and Secondary Nameservers.
Primary Server:The section where the registrant indicates the host name and IP number of the name server that will contain authoritative information for the domain name and will be used to resolve that domain name to its corresponding IP number(x). The designation of “primary” means that this name server will be used first and will be relied upon before any of the other name servers that may be listed on the Domain Name Registration Agreement.
The primary server section of the Agreement is a required section and the domain name registration will not be processed unless an untill this section of the Domain Name Registration Agreement is completed properly.
Second Level Domain:It is the next highest level of the hierarchy underneath the Top Level Domains. In the example, 1stDomain.com – the “1stDomain.com” part is the second level domain. Second level domain names are what you register in a Top Level Domain registry.