21 May 2000Chinese Domain Name Workshop1 Status and planning reports of JPNIC 宇井隆晴 (UI,...
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Transcript of 21 May 2000Chinese Domain Name Workshop1 Status and planning reports of JPNIC 宇井隆晴 (UI,...
21 May 2000 Chinese Domain Name Workshop 1
Status and planning reports of JPNIC
宇井隆晴 (UI, Takaharu) <[email protected]>
JPNIC
21 May 2000 Chinese Domain Name Workshop 2
.JP domain name space AD.JP: Network Administrative Organizations CO.JP: Commercial Companies AC.JP: Academic Organizations GO.JP: Governmental Agencies OR.JP: Other types of Organizations NE.JP: Network Service Domains (from Nov. 6, 1996) GR.JP: Group Domains (from Dec. 1, 1997) ED.JP: Schools (from Feb. 1, 1999) GEO: Geographical Domains
TOKYO.JP YOKOHAMA.JP ...
21 May 2000 Chinese Domain Name Workshop 3
JPNIC Registered Domains
0
30000
60000
90000
120000
150000
1992/5/1 1993/5/1 1994/4/1 1995/4/1 1996/4/1 1997/4/1 1998/4/1 1999/4/1 2000/2/1
Others(Geographical etc.)EDGRNEORGOCOACAD
ftp://ftp.nic.ad.jp/jpnic/statistics/Allocated_Domains
21 May 2000 Chinese Domain Name Workshop 4
Registration Policy(ASCII DN) First-come, first-served One domain name per organization Non-transferable Local presence in Japan
Discussion underway with a view to changing these policies
21 May 2000 Chinese Domain Name Workshop 5
Future Plan for ASCII DN Effectuate dispute resolution
procedure. For problems of cyber squatting,
conflict with trademarks, and so on. Relax limitations for number of
domain name registration. … the above plans hopefully be
realized within this year.
21 May 2000 Chinese Domain Name Workshop 7
Current status of JPNIC JPNIC published statement about
multilingual domain name on 25th Feb, and will publish revised version very soon. Please check our web page described
in next page. JPNIC promotes standardization
actively cooperate with IETF, MINC and related organizations.
21 May 2000 Chinese Domain Name Workshop 8
Current status of JPNIC JPNIC formed a task force to deal with
multilingual domain name issues. IDN Task Force is in charge of research and
development of IDN issues. JPNIC started webpage about multilingual
domain name on middle of March. The URL is:
http://www.nic.ad.jp/en/research/idn/index.html JPNIC began joint meeting with another NICs
for information exchange and discuss about multilingual domain name related issues.
21 May 2000 Chinese Domain Name Workshop 9
JPNIC implementations JPNIC has 2 own experimental
implementations of multilingual DNS. Those 2 experimental implementations
were study of university students who were JPNIC IDN-TF members.
JPNIC is planning to modify our implementations referring to the requirements of us presented at 47th IETF.
21 May 2000 Chinese Domain Name Workshop 10
JPNIC implementations –
IDNX/idnx-jp Simple DNS proxy to translate Japanese local
character encodings into UTF-5. Add invisible ZLD when . 日本 is TLD in
query. Refer to IETF draft. Design goal is to separate
internationalization part and localization part easily.
No additional canonicalization or normalization in internationalization part.
21 May 2000 Chinese Domain Name Workshop 11
JPNIC implementations –
GDNS 8bit through DNS Server based on
BIND-8. No character code conversion. Uses character code set tag in
reverse lookup table. Ex.4.3.2.1.EUC-JP.in-addr.arpa.
21 May 2000 Chinese Domain Name Workshop 12
Related activities in Japan 2 companies (netpia.com and jp.io)
provides Japanese domain name registration service as keyword.
i-dns.net published press-release that they will start Japanese domain name registration service as DNS within this month in alliance with 3 companies (ASCII, Crayfish and InterQ).
21 May 2000 Chinese Domain Name Workshop 14
Dispute Resolution Multilingual domain names
registration may have more disputes than ASCII domain names. Because usually Trademarks are
written in local language. We think it needs dispute
resolution process(DRP) or/and examination before registration.
21 May 2000 Chinese Domain Name Workshop 15
Limitation of Character Set/Language What character set should Registry allow
for domain name under multilingual TLDs? Belong to TLD’s character set
Ex) Japanese TLD(. 日本 ) has only Japanese Domain names.
No Limitation Ex) Japanese TLD can have Chinese, Korean, Tamil
and Arabic domain names.
We think mDN character set belong to TLD.
21 May 2000 Chinese Domain Name Workshop 16
Limitation of Characters What characters should Registry
allow for domain name? All characters of the character set? Symbol marks? Similar glyph characters
… this problem has relation to canonicalization and normalization.
21 May 2000 Chinese Domain Name Workshop 17
Canonicalization-1 Some character sets(including ISO10646)
have characters with almost the same glyph but different character codes. For example:
‘ 高’ (9ad8)‘ 髙’ (9ad9)
‘A‘ (0041, ASCII uppercase A)‘ A’ (0391, Greek uppercase α)‘ A’ (0410, Russian uppercase A)‘ A’ (ff21, Japanese double width A)
21 May 2000 Chinese Domain Name Workshop 18
Canonicalization-2 Same glyph characters bring users’
confusion. So, we think canonicalization should be done somewhere. In domain name registration. In making of mDN query in resolver
and/or proxy.
21 May 2000 Chinese Domain Name Workshop 19
Normalization-1 Same words in one language can
be written in varieties of scripts. E.g. Japanese language has 4 scripts.
Latin alphabet : tagengo Kanji : 多言語 Hiragana : たげんご Katakana : タゲンゴ
21 May 2000 Chinese Domain Name Workshop 20
Normalization-2 Another, same problems are caused
by some situations as follows: Same meaning words
E.g. ‘ 国際’ , ‘ 国家間’ Abbreviation
E.g. ‘ 高等学校’ , ‘ 高校’ Transliteration
E.g. ‘Japan’, ‘ 日本’
21 May 2000 Chinese Domain Name Workshop 21
Normalization-3 In multilingual domain name
registration, those names should be dealt same name or not?
We think it needs normalization. But it is difficult to decide on what case normalization should be applied.
21 May 2000 Chinese Domain Name Workshop 22
Name Space Coordination Multilingual domain name
registration services are already provided by some registries using different ZLDs and same multilingual TLDs.
Using different technology and same multilingual TLDs may cause the same problem.
21 May 2000 Chinese Domain Name Workshop 24
Service Schedule JPNIC will start Japanese domain
name experimental registration service after decide all of registration policy and effectuate dispute resolution procedure.
JPNIC will apply ASCII DRP to mDN DRP.
Experimental phase will continue until standardization to be finished.