Definition Domain
November 17th, 2008 | by whazup |
A time when we want to access a particular web site, we usually just type the web site address in the browser, and in some time, we view a site that will soon be heading on the monitor screen. Similarly, when we send each other emails, that we need is an email address to determine where the message we will be posted. All the facilities are not separated from the role of the domain.
Actually, what was the domain? Before we discuss more about the understanding of the domain, we need to know a little about how a host on the Internet accessible environment. Internet consists of millions as the host computer that spread throughout the world that all inter-related through a hierarchy of the network with certain. The hosts are mutually communicate through a standard protocol called TCP / IP (Transmission Control Protocol / Internet Protocol). So that each computer forming the network can communicate with one another, so each must have a specific address. This address should be unique, so there is no bolah two hosts that have the same address.
System that used a combination of the number 4 train between 0 s / d 255, each separated by a period (.), From 0.0.0.1 to 255255255255. The row of numbers known as IP address (the IP address). Each host is connected in a network must have an IP address as the identifier that can bekomunikasi with a host of the network. Addressing based IP enables Internet put address more than 4 billion hosts. In fact, not all combinations of IP addresses can be used. There are several special combination that is reserved for specific purposes that may not be used for purposes address, for example, the IP 127.0.0.1 is required to appoint (lookup) to the local host.
Although technically addressing IP based system is reliable enough, but he still has weaknesses. Human brain is generally not easy to remember the combination of numbers in large numbers. The solution is associate IP number in the combination of letters that make up a name that is easily remembered. Now, the host name as the identifier in the Internet network is a key domain, while the system address based domain known as the Domain Name Service (DNS).
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Tags: address, domain, IP, system
