.kr DNS Redirection 28. Oct, 2009 Korea Internet & Security - PowerPoint PPT Presentation

Mar 16, 2023 •44 likes •164 views

.kr DNS Redirection 28. Oct, 2009 Korea Internet & Security Agency Contents 1. DNS Redirection 2. Use of .kr DNS direction 3. Web-Navigation System 4. Market share of web browser in Korea 5. .kr DNS Redirection status 6. Query status for

.kr DNS Redirection 28. Oct, 2009 Korea Internet & Security Agency
Contents 1. DNS Redirection 2. Use of .kr DNS direction 3. Web-Navigation System 4. Market share of web browser in Korea 5. .kr DNS Redirection status 6. Query status for Web-Navi. Sys 7. Future Plan 2
1. DNS Redirection ⑥ service replica ⑤ client PC ④ ① ② ③ client-side DNS server server-side DNS server [The principle of DNS Redirection] • When domain name can’t be translated into IP address ⇒ DNS redirection (ex. mistyped, no longer exits, etc) • Good or Bad ? 3
2. Use of .kr DNS Redirection ⑥ IP : 111.xxx.xxx.xxx .kr DNS server ② IP: 222.xxx.xxx.xx .kr Zone DB * 1800 IN A 222.xxx.xxx.xxx ① 한글 .kr ns1.kisa.or.kr IN A 111.xxx.xxx.xxx x … xn--bj0bj06e.kr IN NS ns1.kisa.or.kr … 한 글 ③ . k r h t t p r e q 한 u 글 e ④ s IE6.0 or earlier version Users . t k r h t t p x n r e - ⇒ - s b p j 0 o b n j s 0 e 6 e . k Web-Navigation System r & - IP address : 222.xxx.xxx.xxx -Puny-code Converting - Forwarding web page [.kr DNS Redirection] 4
3-1. Web-Navigation System • System for IE 6.0 or earlier ver. Users – Web server(Hyper Text Transfer Protocol) – Converting Hangul domain name into ASCII d omain name(Puny-code) – Forwarding web page of the ASCII domain na me <HTML> … <meta http-equiv=refresh content='0; url=forwarding_URL'> … </HTML> [Response of Web-Navigation] 5
3-2. Web-Navigation System • Merits – IE6 or earlier ver. users can use Hangul .kr do main name without plug-ins – Study on status of Hangul .kr domain name q ueries and handling the system easily • Demerits – Garbage traffic by using wild character(*) in .kr Zone ⇒ System overload – Last response 6
4. Market share of web browser in Korea 57.23% 36.13% 0.93% 0.23% 0.21% 0.05% From InternetTrend™ 7
4-1. Market share of web browser in Korea 8
5. .kr DNS Redirection status 0.17% 3.10% 96.73% From KISA • Total .kr Responses : 1.52 billion ※ per one day – Normal .kr Queries : 1.45 billion (96.73%) – .kr DNS Redirection : 2.5 million (0.17%) – Etc. : 47.13 million (3.10%) 9
6. Query status for Web-Navi. Sys. 33% 67% From KISA • Total .kr Redirection : 2.5 million ※ per one day – Hangul .kr Domain Name : 1.7 million (67%) – Etc. : 0.8 million(33%) 10
7. Future Plan • Alternation for Web-Navi. System – Developing Puny-code Converting DNS S/W • Promotion – Using IE 7.0 or upper version for IE users 11
Thank you Q & A 12

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