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The DNS infrastructure is made up of [[computing]] and [[communication]] entities that are geographically distributed throughout the world. There are more than 250 [[top-level domain]]s, such as [[.gov]] and [[.com]], and several million [[second-level domain]]s, such as nist.gov and ietf.org. Accordingly, there are many [[name server]]s in the DNS infrastructure, each of which contain [[information]] about a small portion of the [[domain name]] space. The DNS infrastructure functions through collaboration among the various entities involved. The [[domain name]] data provided by [[DNS]] is intended to be available to any [[computer]] located anywhere on the [[Internet]]. |
The DNS infrastructure is made up of [[computing]] and [[communication]] entities that are geographically distributed throughout the world. There are more than 250 [[top-level domain]]s, such as [[.gov]] and [[.com]], and several million [[second-level domain]]s, such as nist.gov and ietf.org. Accordingly, there are many [[name server]]s in the DNS infrastructure, each of which contain [[information]] about a small portion of the [[domain name]] space. The DNS infrastructure functions through collaboration among the various entities involved. The [[domain name]] data provided by [[DNS]] is intended to be available to any [[computer]] located anywhere on the [[Internet]]. |
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− | == Historical background == |
+ | vfgd== Historical background == |
In the early days of [[computer network]]s, the address system used to permit one [[computer]] to [[communicate]] with another was cumbersome. Each [[computer]] had to have a unique 32-digit number called an [[Internet Protocol]] ([[IP]]) address, so that it could [[transmit]] [[information]] to, and receive [[information]] from, other [[computer]]s on the [[network]]. To make these numerical, computer-readable addresses, more user-friendly, human-readable names, which typically consist of fewer numerical and/or other characters, were adopted. |
In the early days of [[computer network]]s, the address system used to permit one [[computer]] to [[communicate]] with another was cumbersome. Each [[computer]] had to have a unique 32-digit number called an [[Internet Protocol]] ([[IP]]) address, so that it could [[transmit]] [[information]] to, and receive [[information]] from, other [[computer]]s on the [[network]]. To make these numerical, computer-readable addresses, more user-friendly, human-readable names, which typically consist of fewer numerical and/or other characters, were adopted. |