|If you have been paying attention to the way your Internet service has been working lately, you may have heard about the Domain Name System or the DNS. The Domain Name System, also called DNS, is an integral part of the worldwide web. Essentially, DNS translates a domain name into an IP address so that users can connect to a web site. For those of you who aren't familiar with how it all works read on to find out the basics.|
There are two main components to the DNS system: a name server and a server. The name server is a computer on the internet which randomly assigns IP addresses to all the websites that are connected to the World Wide Web. This process is done periodically and is generally agreed upon by all the servers. This is also known as the DNS server types. The primary server types are the authoritative, record, or root servers.
The authoritative nameserver is the one responsible for frequently checking the records and adding or deleting names in response to queries from other computers on the internet. The records server will keep an archived copy of almost every domain in existence along with information relating to the owner of the domain and other details. Another frequently used nameserver is the reverse proxy nameserver.
The domain name reverse lookup system was developed by technology enthusiasts to make it easier for people to research their favorite domain names. To do this, it searched an index of domain names and cross-referenced them to the relevant IP addresses. When the result pages came back, it was easier to identify the name of the domain owner. The reverse dns lookup system can be used to lookup email addresses as well as the names of websites that are associated with them. The system was originally developed for use by the United States National Security Agency (NSA).
The domain name system works similarly to how the telephone book locator works. You enter the street address of the desired domain name in the search bar provided on the system and click search. The system will then return to you various information about the domain owner, including his contact details. However, the system does not contain information on sub-domains.
There are two main types of name servers - the domain name server types and the name servers used by commercial companies. The domain name server types include the ones that are included in the operating system itself such as the Windows family of operating systems. They allow a user to locate a domain name from the name server directory. Name servers also translate domain names into IP addresses for the user's query to the internet.
Name servers configured as part of an OS allow users to find a domain name from the query messages received during booting up. Name resolution with these OS name servers are rather straightforward and easy. The domain name resolved from the authoritative server stores the query in its cache. Whenever a query comes from an IP address, the query is sent back to the authoritative server and the server returns the answer or answers. Name resolving with these authoritative servers work well in situations where the domain name resolved is not used often but is still remembered.
The other type of name server most commonly used is the nameserver found on web hosting services. There are different types of nameservers and most hosting providers have one that is suitable for any business needs. Nameservers usually contain IP addresses that are relevant to the domain name being requested. Some hosting services also provide access to the WHOIS database. This database is useful for anyone wanting to find out who owns a domain name.