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treasure map

domain

Domains were proposed in 1983 by Paul Mokapetris of USC 's Information Science
Institute and began to be used as they became popular on the Internet . With the

establishment of ICANN in 1998 , the overall operation and management of domains
was delegated by the U.S. Department of Commerce, including domains, IPs, and DNS
1) has the authority to operate .

general top-level domain (gTLD), country code top-level domain (ccTLD), and
secondary domain, and each country's top-level domain is delegated to the
management organization of that country .
■ What is a domain ?

IP is difficult for humans to understand and remember, a name was given to each IP ,
which is called a domain .

opentutorials.org -> 115.68.24.88
naver.com -> 220.95.233.172
daum.net -> 114.108.157.19 115.68.24.88
opentutorials.org
my computer

name server

115.68.24.88

■ Components of a domain
It consists of the computer's name and top-level domain . For example :

• Opentutorials.org
- open tutorials: name of the computer
- org : top-level domain – non-profit organization
• daum.co.kr
- daum : name of the computer
- co: refers to the top-level domain in the form of a country

- kr : refers to the domain managed by

QR

1) DNS (Domain Name Server): A system that converts text Internet addresses into numeric IP addresses .

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