Category domain names are domain names divided according to the nature of the applicant organization. What is the domain name of the network service?

Category domain names are domain names divided according to the nature of the applicant organization. The domain name of network services is "NET"; NET Internet network, access network information center and operation center, the new Internet domain name system is at the top level In addition to the domain name "CN", there are currently three Chinese top-level domain names: "China", "Company" and "Network".

The operating environment of this tutorial: Windows 10 system, DELL G3 computer.

Category domain names are domain names divided according to the nature of the applicant organization. What is the domain name of the network service?

Category domain names are domain names divided according to the nature of the applicant organization.

Category domain names generally include six types of domain names, which are divided into following categories according to the nature of the applicant organization:

• AC Scientific Research Institution

• COM Industrial, commercial, financial and other enterprises

• EDU Educational institutions

• GOV Government departments

• NET Internet, Access Network Information Center (NIC) and Operations Center (NOC)

• ORG Various non-profit organizations

In 2006, the Ministry of Information Industry made partial adjustments to the current China Internet domain name system, that is, adding the MIL category domain under the top-level domain name CN, which is applicable to China's defense agencies. The adjusted China Internet domain name system came into effect on March 1, 2006.

Domain Name Introduction

The new Internet domain name system temporarily includes "China", "Company" and "CN" in addition to the top-level domain name "CN". When users of the three Chinese top-level domain names of "Network" visit these websites, the signal will directly pass through the domestic resolution server, and no longer need to go through the resolution server under the management of the American domain name company ICANN, and network security will be strengthened.

The new Internet domain name system stipulates that there are two types of English second-level domain names under the top-level domain name CN: "category domain name" and "administrative region name". Among them, there are 7 "category domain names", namely AC for scientific research institutions, EDU for Chinese educational institutions, GOV for Chinese government institutions, MIL for Chinese defense institutions, etc. There are 34 "administrative region names", which are applicable to organizations in various provinces, autonomous regions, municipalities, and special administrative regions in my country. They are mainly named after the first letter of their Chinese pinyin. For example, the domain name of Beijing is BJ, and the domain name of Shanghai is SH.

Types and classifications of domain names

1. Domain names are divided according to different languages

Chinese Name, English domain name, Japanese domain name and domain name in other languages;

2. According to the domain where the domain name is located, it is divided into

top-level domain name and second-level domain name;. The com domain name is the earliest and most widely used domain name. For example, it represents an industrial and commercial enterprise. com, indicating the network provider. net, which represents a non-profit organization. org etc. The second is national domain names, also known as national top-level domain names (nTLDs for short), which are assigned different suffixes according to different countries. These domain names are the country's national top-level domain names. At present, more than 200 countries and regions have allocated top-level domain names according to ISO3166 country codes, such as cn for China, us for the United States, jp for Japan, etc.

3. According to different management organizations, they are divided into

International domain names are operated and managed by the non-profit international organization ICANN (The Internet Corporation for Assigned Names and Numbers) - to . com,. net,. org,. cc,. Domain names with the suffix of the root domain such as tv; national domain names - domain names with the suffix of the country code (such as .CN for China, .JP for Japan, and .UK for the United Kingdom);

4. According to the different forms of the suffix, it is divided into

.COM Commercial institutions or companies

.ORG Non-profit organizations and groups

.GOV Government departments

.MIL Military department

.NET Institutions or companies engaged in Internet-related activities

.AC Scientific research institution

.EDU Educational institution, top-level Internet general One of the domains, mainly used by educational institutions, such as universities and other institutions.

.ARPA, a name inherited from ARPANET (the computer network established by the U.S. Defense Advanced Research Projects Agency), is used for internal functions of the Internet.

.BIZ Online business guide, suitable for commercial companies (note: biz is the customary abbreviation of business).

.info Enterprises that provide information services

.pro A generic top-level domain name suitable for doctors, lawyers, accountants and other professionals

.name A generic top-level domain name suitable for individual registration Domain name

.coop Special top-level domain name suitable for commercial cooperatives

.travel Tourism domain name, international domain name

.int International organization

...etc.

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