![]() ![]() ICANN currently grants permission to organizations to act as domain name registrars for specific higher level domains. Domain Name Registrarīy managing domain name reservations, name registrars are critical to how DNS works. Sub DomainĪ subdomain can be created to identify unique content areas of a web site. This is the part of a domain name which comes right before the TLD-for example. org – Organizations (mostly non-profit).edu – Educational institutions such as universities.Country code TLDs represent specific geographic locations. TLD refers to the last part of a domain name. The Internet Corporation for Assigned Names and Numbers ( ICANN) manages these domain names Top Level Domain (TLD) How DNS Works: Domain Name System Terminology Domain NamesĪ domain name is a human-readable name-like -that we type in a web browser URL field. ![]() The servers return Amazon’s address so the browser can request data from Amazon’s web host, which returns the elements necessary to build their home page in the local browser. DNS comes under the application layer protocol.Ī user types his browser, which then queries the DNS server for ’s IP addresses. DNS can be best compared to a phone book where you look up the phone numbers listed by easier-to-remember names. The DNS provides mapping between human-readable names (like and their associated IP addresses (like 205.251.242.103). Once we’re comfortable with the DNS process and terminology, we’ll explore migrating existing domains to Route53. While we’ll get to AWS’s Route53 Domain Name System (DNS) service in the second part of this series, I thought it would be helpful to first make sure that we properly understand just how DNS works in general. Before migrating domains to Amazon’s Route53, we should first make sure we properly understand how DNS works ![]()
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